1. phy

    silver ball= 50g water= 350 g water= 0 celcius equilibrium temperature= 10 celcius specefic heat capacity of platinum= 230 what is the temperature of furnace?

    asked by pop on July 14, 2011
  2. phys101

    in a calorimeter can(water equivalent=40g)are 200g of water and 50g of ice,all at 0 degreea celcius.into these poured 30g of water at 90degrees celcuis.what will be the final temperature of the system?specific capacity of water is 4186j/kg per degrees

    asked by KABELO on April 29, 2010
  3. chemistry

    100g of stea initial at 100 degree celcius is passed through a calorimeter containing 1kg of water at 20 degree celcius. Assuming no heat loose and negligible heat capacity of the calorimeter, calculate the final temperature of the calorimeter and the

    asked by minenhle on August 31, 2015
  4. Chemistry-Dr.Bob

    An unknown piece of metal weighing 100. g is heated to 90.0 degrees Celcius. It is dropped into 250 g of water at 20.0 degrees Celcius. When equilibrium is reached, the temperature of both the water and piece of metal is 29.0 degrees Celcius. Determine the

    asked by Sanaya on January 9, 2016
  5. college chem

    calculate the amount of energy (in kj) necessary to convert 457 g of liquid water from 0 Celecius to water vapor at 167 celcius. the molar heat of vaporization (Hvap) of water is 40.79 jk/mol. the specific heat for water is 4.187 j/g celcius and for steam

    asked by luis fernandez on February 4, 2013
  6. chemistry HELP

    A 46.2 gram sample of copper is heated to 95.4 degrees celcius and then place into a calorimeter containing 75.0 grams of water at 19.6 degrees celcius. The final temp of the water and copper is 21.8 degrees celcius. Calculate the specific heat capacity of

    asked by lyne on January 2, 2009
  7. Science

    A lead calorimeter with mass of 150g contains 200g of water. The calorimeter and water are in thermal equilibrium at a specific temperature. Two metallic blocks are placed into the water. One is a 50.0g piece of aluminum heated at 90 degrees celcius. The

    asked by Anonymous on December 2, 2016
  8. Science

    A lead calorimeter with mass of 150g contains 200g of water. The calorimeter and water are in thermal equilibrium at a specific temperature. Two metallic blocks are placed into the water. One is a 50.0g piece of aluminum heated at 90 degrees celcius. The

    asked by Angel on December 2, 2016
  9. Physics

    A piece of copper ball of mass 30grams at 150 degree celcius is placed in a copper calorimeter of mass 70gams containing 60grams of waterof copper 40degree celcius if the final ofthe mixture is 50degree celcius calculate the specific heat capacity of

    asked by Elizabeth Avan on October 31, 2016
  10. physics

    In lab you submerge 100 g of 41 degree Celcius iron nails in 100 g of 25 degree Celcius water (the specific heat of iron is 0.12 cal/g degrees Celcius) A)Equate the heat gained by the water to the heat lost by the nails and find the final temperature of

    asked by christy on April 3, 2012
  11. physics

    the temperature of 500g of a certain metal is raised to 100 degre celcius and it is then placed in 200g of water at 15 degre celcius.if the final steady temperature raises to 21 degre celcius,calculate the specific heat capacity of the metal

    asked by Anonymous on March 15, 2016
  12. Physics

    What rise in temperature occurs when 10g of steam at 100 degree celcius are passed into 400g of water at 10 degrees celcius taking the specific heat capacity of water to be 4.2J/gK and specific latent heat of vapourisation of steam to be 2268J/g

    asked by Sarah on January 16, 2011
  13. ap chemistry

    a cubic piece of uranium metal (specific eat capacity= .117 J/g degree celcius) at 200.0 degrees celcius is droped into 1.00 L of deuterium oxide ("heavy water", specific heat capacity=4.211 J/g degree celcius) at 25.5 degrees celcius. the final

    asked by Sarah on September 24, 2010
  14. physics

    What would be the final temperature when 125g of 25 degrees Celcius water is mixed with 85g of 45 Degrees Celcius water? ( hint: Equate the heat gained by the cool water with the heat lost by the warm water.)

    asked by Maddie on May 3, 2013
  15. College Chemistry

    A 542-g piece of copper tubing is heated to 89.5 degrees Celcius and placed in an insulated vessel containing 159 g of water at 22.8 degrees Celcius. Assuming no loss of water and a heat capacity for the vessel of 10.0 J/K, what is the final temperature of

    asked by Courtney May on February 21, 2010
  16. Chemistry 1 HN

    Find the mass of iron heated to 85 degrees celcius that was added to 54.0 grams of water. The temperature of the water changed from 20 degrees celcius to 60 degrees celcius. The specific heat of the iron is 0.045 J/g degrees celcius

    asked by Gray on January 1, 2013
  17. Chemistry

    the heat of combustion of propane is -5.47MJ/mol. there is 1.50kg of propane available to burn. how many litres of water could be heated from 18.0 degrees Celcius to 63.0 degrees Celcius using the heat from the burning propane. assume that all heat lost by

    asked by Rachel on October 20, 2009
  18. physics

    Hot water of mass 80g, at a temperature of 100degree celcius is pourd into 30g of water at 30degree celcius. Assuming that no heat is lost, calculate the final temperature

    asked by bright on September 2, 2011
  19. physics

    120 grams of an unknown metal at a temperature of 95 degrees celcuius is poured into 140 grams of aluminum calorimeter containing 220 grams of water. If the inital temperature of the water and calorimeter was 15 degree celcuius and the final temperature

    asked by christoper allen on December 21, 2014
  20. ap chemistry

    A sample of KOH is dissolved into 100.0 grams of water in a coffee cup calorimeter. if the dissolution produces 6.45 kJ of heat and the temperature change is 25.4 degrees celcius to 40.0 degrees celcius, how much KOH (in grams) is added to the water? (the

    asked by Sarah on September 24, 2010
  21. Chemistry

    The specific heat capacity of a metal is given as 0.745 J/ degree Celcius.What mass of the metal must be heated to 95 degree Celcius in order to be used to warm 2.548 L of water from 18.1 degree Celcius to 22.5 degree Celcius ? I'm so confused I don't even

    asked by Carmelo on November 11, 2014
  22. Food Chemestry

    A heat exchanger is used to warm apple cider using steam as the heat source. The cider is heated from an initial temperature of 4 degrees celcius to a final temperature of 65 degree celcius. The steam enters the heat exchanger as 50% quality steam and

    asked by Bev on March 4, 2013
  23. science

    A heat exchanger is used to warm apple cider using steam as the heat source. The cider is heated from an initial temperature of 4 degrees celcius to a final temperature of 65 degree celcius. The steam enters the heat exchanger as 50% quality steam and

    asked by Bev on March 4, 2013
  24. Physics

    120 grams of metal at 88 degree celcius is poured into a 70 grams isolated cup contains 250 grams of water at 16 degree celcius. The final temperature of the mixture is 17.5 degree celcius. Determine the specific heat capacity of the metal?

    asked by vench on July 11, 2013
  25. Chemistry

    If 150.0 grams of iron at 95.0 degrees Celcius, is placed in an insulated container containing 500.0 grams of water at 25.0 degrees Celcius, and both are allowed to come to the same temperature, what will that temperature be? The specific heat of water is

    asked by Chloe on February 22, 2012
  26. chemistry

    the specific heat of water is 4.184 j/g-c(celcius). how much heat is required to raise the temperature of 5.0 g of water by 3.0 c(celcius)?

    asked by demond on April 4, 2010
  27. Physics

    A 100g piece of ice at 0 degrees celcius is placed into a container holding 200g of water, initially at temperature 25 degrees celcius. Heat flows from the water to the ice, cooling the water and melting the ice. Calculate a) how many moles of ice and how

    asked by Betty on November 4, 2015
  28. Chemistry

    A 35.0 g block of copper at 350.0 degrees celcius is added to a beaker containing 525 g of water at 35.0 degrees celcius. What is the final temperature of water?

    asked by Maryam on November 27, 2012
  29. physics

    A 2.8 kg gold bar at 99 degrees celcius is dropped into 0.21 kg of water at 23 degrees celcius What is the final temperature? Assume the specific heat of gold is 129 J/kg times degrees celcius. Answer in units of degrees celcius

    asked by help! on January 30, 2012
  30. Chemistry

    How many joules of heat are needed to heat 25.0 g of ice at -5.0 degrees celcius to a final temperature of 40.0 degrees celcius? The specific heat of ice is 2.1 j. Our teacher mention to consider the state of water present at 40.0 degrees celcius which is

    asked by Thao on April 6, 2011
  31. science

    A mass,m of water at 100degree celcius is added to another mass of water ,m at a temperature,t. The reslting temperature of the mixture is T. If the specific heat capacity of water is 4.2J/gk. Drive an expression for L terms of other quantities.

    asked by n s k on April 22, 2012
  32. Thermochemistry Ap Chem homework

    Any help would be great, even if it is just a way to start or a formula. Calculate the heat necessary to convert 10.0 g of water (just melted) at 0 degrees Celcius to water at 20 degrees Celcius, assuming that the specific heat remains constant at 1

    asked by Chris on November 15, 2010
  33. Heat Energy

    1. (a) 500g of copper is heated from 30 degree celcius - 120 degree celcius?. (b) if the same quantity of heat is supplied to 300g of water initial at 30 degree celcius,what will be the final temperature.

    asked by Precious on March 19, 2013
  34. physics

    how to determine the amount of water in the container when you are given a 200g piece of aluminium at 90 degrees celcius is placed in a 100g glass container which holds an unknown amount of water at 20 degrees celcius .if the equilibrium temperature is

    asked by vuyo on September 29, 2014
  35. chem

    What is the final temperature (degrees celcius) of 1.36g of water with an initial temperature of 23.0degrees celcius after 6.420J of heat is added to it?

    asked by Chironjit on November 19, 2012
  36. physics

    A cook placed five eggs£¬each having a heat capacity of 114J/celcius£¬in a 250g aluminum pot containing 0.5L of water at a temperature of 20celcius. If the heating element is raised at 750W£¬and one fifth of the heat escapes to the

    asked by Anonymous on April 18, 2015
  37. science

    How much heat is required to warm 225g of ice from -46.8 degree celcius to 0.0 degree celcius, melt the ice, warm the water from 0.0 degree celcius to 100.0 degree celcius, boil water, and heat the steam to 173.0 degree celcius.

    asked by kayt on March 31, 2011
  38. science

    a 100.0 gram metal sample is heated to a temperature of 110 degrees celcius then placed into a calorimeter containing 100.0 r of pure water (at initial temperature of 23 degrees celcius). after the sample and water reach thermal equalibrium, their final

    asked by jason wolthen on March 1, 2011
  39. General Chemistry II

    A quantity of ice at 0 degrees celcius is added to 64.3 grams of water in a glass at 55 degrees celcius. After the ice melted, the temperature of the water in the glass was 15 degrees celcius. How much ice was added? The heat of fusion of water is

    asked by LeAnna on January 20, 2011
  40. college physics

    calculate the specific heat of 200g of substance whose temperature is 30 degree celcius if it is mixed with 200g of water heated in a 300g iron container at 100 degree celcius. the final temperature of the mixture is 98 degree celcius.

    asked by albert on February 14, 2012
  41. college physics

    calculate the specific heat of 200g of substance whose temperature is 30 degree celcius if it is mixed with 200g of water heated in a 300g iron container at 100 degree celcius. the final temperature of the mixture is 98 degree celcius.

    asked by albert on February 14, 2012
  42. Chemistry

    Calculate the specific heat of a metallic element if 314 jouldes of heat energy are needed to raise the temperature of a 50g sample from 25 degrees Celcius to 50 degrees Celcius?

    asked by ASK on May 25, 2009
  43. calorimetry

    if 158 grams of silver at a temperature of 98.5 degrees celcius is placed in a styrofoam cup of 85 grams of water at 13 degrees celcius, what would the final temperature of the water be in two minutes

    asked by moe on February 25, 2009
  44. Chemistry

    The temperature of a 12.58g sample of calcium carbonate increases from 23.6degrees celcius to 38.2 degrees celcius. If the heat capacity is 0.82J/g-K, how many Joules of heat are absorbed

    asked by Tommy on June 18, 2013
  45. physics

    how to determine the amount of water in the container when you are given a 200g piece of aluminium at 90 degrees celcius is placed in a 100g glass container which holds an unknown amount of water at 20 degrees celcius .if the equilibrium temperature is

    asked by viwe on September 29, 2014
  46. Heat Energy

    A container holds 3kg of water at 25 degree celcius. If 0.5kg of iron at 80 degree celcius is added to the water in the contain. What is the? (i) final temperature of the container. (ii) Quantity of heat gained by water

    asked by Precious on March 19, 2013
  47. Physics

    You have 300 g of coffee at 55 degrees celcius. Coffee has the same specific heat as water. How much 10 degrees celcius water do you need to add in order to reduce the coffee's temperature to a more bearable 40 degrees celcius?

    asked by Hunter on January 29, 2012
  48. PHYSICS

    You have 300 g of coffee at 55 degrees celcius. Coffee has the same specific heat as water. How much 10 degrees celcius water do you need to add in order to reduce the coffee's temperature to a more bearable 49 degrees celcius?

    asked by Hunter on January 29, 2012
  49. Physics

    You have 300 g of coffee at 55 degrees celcius. Coffee has the same specific heat as water. How much 10 degrees celcius water do you need to add in order to reduce the coffee's temperature to a more bearable 49 degrees celcius?

    asked by Hunter on January 29, 2012
  50. Physics

    You have 300 g of coffee at 55 degrees celcius. Coffee has the same specific heat as water. How much 10 degrees celcius water do you need to add in order to reduce the coffee's temperature to a more bearable 49 degrees celcius?

    asked by Help Please on January 29, 2012
  51. Physics

    You have 300 g of coffee at 55 degrees celcius. Coffee has the same specific heat as water. How much 10 degrees celcius water do you need to add in order to reduce the coffee's temperature to a more bearable 49 degrees celcius?

    asked by Help Please on January 29, 2012
  52. Physics

    You have 300 g of coffee at 55 degrees celcius. Coffee has the same specific heat as water. How much 10 degrees celcius water do you need to add in order to reduce the coffee's temperature to a more bearable 49 degrees celcius?

    asked by Hunter on January 29, 2012
  53. physics

    Ice at -10degrees celcius and steam at 130 degrees celcius are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached,the liquid phase at 50 degrees celcius is present. Ignoring the container and

    asked by Elifolet on April 18, 2012
  54. Chemistry

    1. What happens to the temperature of water when 10J of energy are added if you have 10.00g of water? 2. What happens to the heat of the water if the temperature is cooled from 25.0 degrees celcius to 10.0 degrees celcius if you have 10.00g of water?

    asked by jswass on November 13, 2010
  55. Physics

    find the heat flow through the sides of an 25cm tall by 10cm wide of ice water in 46s.The glass is 6.00mm thick; the temperature is inside is 28 celcius, the temperature outside is 50 celcius

    asked by Laura on February 25, 2016
  56. Physics

    A piece of copper ball of mass 20 gram at 200 degree celcius is place in a copper calorimeter of mass 60 gram containing 50 grm of water at 30 degree celcius, ignoring heat loses calculate the final steady temperature of the mixture. ( S. H. C of water is

    asked by Anonymous on January 17, 2016
  57. chemistry

    What is the heat evolved of oxalic acid if the temperature change initial is 28 degrees celcius and the final is 29 degrees celcius and the change in temperature is 1 degree celcius,what is the heat capacity of axolic acid

    asked by Tebogo Maphanga on September 29, 2011
  58. chemistry

    Liquid water has a specific heat of 4.184 J/g degrees celcius. If 50 grams of water is heated from10 to 55 degrees celcius, what is the heat energy in joules needed to heat this water

    asked by kiersten on November 5, 2012
  59. Physics

    A 599 g piece of silver at 150 degrees C is submerged in 1000 g of water at 5 degrees C to be cooled. Determine the final temperature of he silver and water given Heat capacity of water= 4.18 x 10^3 j/kg degrees C Heat capacity of silver= 2.49 x 10^2 j/kg

    asked by Holly on January 16, 2014
  60. Heat energy

    CORRECTION (a). 500g of copper is heated from 30 degree celcius to 120 degree celcius, what is the quantity of heat supplied?(b). If the same quantity of heat is supplied to 300g of water initial at 30 degree celcius. What will be the final temperature.

    asked by Precious on March 19, 2013
  61. chemistry

    we add 100 ml of water at 20 degrees celcius to 10g of an unknown substance which is at 50 degrees celcius. The water ends up at 25 degrees celcius. how much heat was transfered?

    asked by Anonymous on November 15, 2010
  62. physics

    a .300 kg piece of metal is heated to 88 degrees celsius and placed in a copper calorimeter with a mass .150 kg which contains .500kg which contains .500 L of water that are both initially at 12.6 degrees celcius. Over short period of time the mixture

    asked by Franky on April 19, 2013
  63. Chemistry

    Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 degrees celcius ? The freezing point for pure water is 0.0 degrees celcius and Kf is equal to 1.86 degrees

    asked by Nikita on January 16, 2011
  64. Chemistry

    "A mass of 45.0g of molten silver at its melting point is poured into 750mL of calorimeter water at 25.0C. The final temperature reached by both is 30.0C. If the specific heat capacity of silver is 0.235 kJ/kgC, calculate the molar heat of solidification

    asked by Stuck on February 24, 2010
  65. Physics 11th grade 'Heat'

    1) Nova, whose mass is 50.0 kg, stays out skiing for too long and her body temperature drops by 2.00 degree celsius . What is the amount of heat lost from Nova's body? (cHuman body= 3470 J/kg degre celcius) 2) Phoebe's insulated foam cup is filled with

    asked by Isis on March 13, 2013
  66. Science

    A metal object with a mass of 19g is heated to 96 degrees celcius, then transfered to a calorimeter containing 75 g of water at 18 degrees celcius. The water and metal object reach a final temperature of 22 degrees celcius. What is the specific heat of

    asked by Ashleigh on September 24, 2013
  67. chemistry

    125 mL of 25 dergree celsius of distilled water was used to wash and transfer a precipitate. rather than 20 ml of CHILLED distilled water (at 4 degree celcius). the solubility of baruim iodate monohydrate in 25 degree celcius water is 0.028g per 100 ml of

    asked by Myaa on March 1, 2010
  68. chemistry

    determine the solubility in g/100 g water of A. KNO3 at 90DEGREE CELCIUS B. KBr at 80 degrees celcius C. Kl at 0degree celcius D. KCl at 40 DEGREE CELCIUS

    asked by jhelo on February 16, 2014
  69. science

    Fifty grams of ice at 0 degrees celcius is added to 200grams of water at 40 degrees celcius contained in a 100 grams copper calorimeter. If the final temperature of the mixture is 16 degrees celcius, find the heat of fusion of ice.

    asked by arnold gamboa on August 18, 2016
  70. Chem 103

    a piece of gold is heated to 100 degrees celsius. A piece of copper is chilled in an ice bath to 0 degrees celsius. Both pieces of metal are placed in a beaker containing 150 g of water at 20 degrees celcius. Will the temperature of the water be greater

    asked by Anonymous on April 15, 2013
  71. Chemistry

    Calculate the heat of solution of LiOH if addition of 25.0g of LiOH causes the temperature of 120.0ml of water to rise from 20.0 celcius to 29.0 celcius.

    asked by Aditi on January 25, 2013
  72. p.s

    calculate the mass of ice required to lower the temperature of 300 gm of water at 40degree celcius to water at0 degree celcius.

    asked by hema on August 28, 2016
  73. science

    Assuming that radiation with a wavelength = 15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 degree celcius, how many photons are necessary to raise the temperature of

    asked by Breanna on July 22, 2011
  74. Chemistry 109

    How many joules of heat are required to raise the temperature of 225 g of water from 42 degree celcius to 75 degree celcius?

    asked by Chrystal Kilgore on July 22, 2013
  75. Chemistry

    How much heat energy is required to raise the temperature of 4.50 liters of water from 36 degrees celcius to 44.6 degrees celcius?

    asked by carol on January 15, 2012
  76. Chemistry

    A 40.0g sample of an unknow, yellowish-brown, pure metal was heated to 62degrees Celcius and put into a coffee cup calorimeter containing 85.0g of watera at 19.2 degrees Celcius. The water was heated by the hot metal to a temperature of 21.0 degrees

    asked by Kelly on September 24, 2010
  77. Chemistry

    A 40.0g sample of an unknow, yellowish-brown, pure metal was heated to 62degrees Celcius and put into a coffee cup calorimeter containing 85.0g of watera at 19.2 degrees Celcius. The water was heated by the hot metal to a temperature of 21.0 degrees

    asked by Kelly on September 24, 2010
  78. science

    What is the final temperature when you mix 40ml of 40degree celcius water and 25ml of 20 degree celcius water?

    asked by nim on November 24, 2010
  79. Chemistry

    If 1.20g of steam at 100.0 celcius condenses into 38.5 g of water, initially at 27 celcius what is final temperature of water

    asked by Rich on May 25, 2013
  80. chemistry

    a chunk of silver has a heat capacity of 42.8J/degrees celcius and a mass of 181g. calculate the specific heat of silver.

    asked by joshua on November 16, 2009
  81. Physics

    A closed inexpansible vessel contains air saturated with water vapour at 77 degree Celcius. The total pressure of the vessel is 1007mmHg. Calculate the new pressure if the temperature is reduced to 27 degree celcius. (svp water at 77 degree celcius and 27

    asked by Shredder on February 27, 2016
  82. PHYSICS

    A BATH CONTAINS 100 KG OF WATER AT 60 DEGREES CELCIUS. HOT AND COLD TAPS ARE THEN TURNED ON TO DELIVER 20KG PER MINUTE EACH A TEMPERATURE 70 DEGREES CELSIUS AND 10 DEGREES CELSIUS RESPECTIVELY. HOW LONG WILL IT BE BEFORE THE TEMPERATURE IN THE BATH HAS

    asked by LANRE on November 19, 2015
  83. Physics

    a BATH CONTAINS 100 KG OF WATER AT 60 DEGREES CELCIUS. HOT AND COLD TAPS ARE THEN TURNED ON TO DELIVER 20KG PER MINUTE EACH A TEMPERATURE 70 DEGREES CELSIUS AND 10 DEGREES CELSIUS RESPECTIVELY. HOW LONG WILL IT BE BEFORE THE TEMPERATURE IN THE BATH HAS

    asked by Angel on March 10, 2014
  84. chemistry

    how much heat would it take to raise the temperature of 52.0 grams of water from 22.0 degrees celcius to 100.0 degrees celcius

    asked by Shelly on June 28, 2011
  85. science

    A copper calorimeter of mass 150g, was half filled with water of mass 300g and temperature 0 degrees celcius. 5g of ice at 0 degrees celcius was added to the content, later some quanity of steam was passed into the mixture and the temperature rose by 20

    asked by Tomex on March 2, 2014
  86. Calculus

    The celcius scale is devised so that 0 degrees celcius is the freezing point of water ( at 1 atmosphere of pressure) and 100 degrees celcius is the boiling point of water ( at 1 atmosphere of pressure) . If you are more familiar with the Fahrenheit scale,

    asked by Jack on September 11, 2010
  87. Physics 11th Grade "HEAT' 2

    1) Emily is testing her baby's bath water and finds that is too cold,so she adds some hot water from kettle on the stove. If Emily adds 2.00 kg of water at 80.0 degree celcius to 20.0 kg of bath water at 27.0 degree celcius , what is the final temperature

    asked by Isis on March 14, 2013
  88. Grade 12 Chemistry

    If 100g of zinc (c=377J/kg degrees celcius) at 95 degrees celcius is dropped into 60g of water contained in a 100g calorimeter (c=419J/kg degrees celcius) at 20 degrees celcius, what will the final temperature be?

    asked by Mikky on October 10, 2010
  89. physics

    A piece of copper ball of mass 20g at 200°c is placed in a copper calorimeter of mass 60g containing 50g of water at 30°c ignoring heat losses.calculate the final steady temperature of mixture.(specific heat capacity of water=4.2jg-1k-1)

    asked by Abiodun on January 29, 2017
  90. phusical science

    spent steam from a electric generating plant leaves the turbines at 120 degrees celcius and is cooled to 90 degrees celcius liquid water by water from a heat exchanger. how much heat is removed by the cooling tower water for each kg of of spent steam

    asked by Anonymous on October 5, 2010
  91. science

    tori wants to increase the tempreature of 500 grams of water from 20 degrees celcius to 100 degrees celecius if the specific heat of water is 4.18j/g. degrees celcius how much heat is needed ?

    asked by nikita on March 1, 2011
  92. chemistry

    the value of Kp after the decomposition of sulfur trioxide (S03). 2SO3 (g)--2SO2 (g) +O2 (g) is 1.79 x10^-5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine the

    asked by linda on November 7, 2010
  93. partial pressure

    1) the value of Kb after the decomposition of sulfur trioxide (S03). 2SO3 (g)--2SO2 (g) +O2 (g) is 1.79 x10^-5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine

    asked by linda on November 7, 2010
  94. chemistry

    1) the value of Kb after the decomposition of sulfur trioxide (S03). 2SO3 (g)--2SO2 (g) +O2 (g) is 1.79 x10^-5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine

    asked by michelle on November 6, 2010
  95. Physics

    A physicist converted 2 kg of water at 37 degrees celcius to steam at 100 degrees celcius. Assuming no heat is lost, calculate the amount of energy needed to heat to 100 degrees celcius.

    asked by i need help on June 5, 2015
  96. Chemistry

    A 62g piece of ice at 0 degrees celcius is added to a sample of water at 9 degrees celcius. All of the ice melts and the temperature of the water decreases to 0 degrees celcius. How many grams of water were in the sample

    asked by Lisa on February 17, 2013
  97. chemistry

    HELPPPP!!!! This is a lab, and i need help with the equations please!! Thank you !! Heat of fusion data table : Mass of foam cup = 3.57g Mass of foam cup + warm water = 104.58g Mass of foam cup + warm water + melted ice = 129.1g Temperature of warm water =

    asked by maryam on December 2, 2012
  98. physics

    what should be the resistance of a heating coil which will be used to raise the temperature of 500 grams of water from 28 degrees celcius to 100 degrees celcius in 2 minutes, assuming that 25% of the heat is lost? the heater utilizes 110 volts.

    asked by Anonymous on March 27, 2011
  99. Chemistry

    75.0 claories of heat were added to 50.0 ml of water, the initial temperature of the water being 25.0 celcius. What is the final temp. of water?

    asked by Anonymous on October 10, 2011
  100. science

    what is the heat capacity of iron when a 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and it's temperature changes from 25 degrees celcius to 175 degrees celcius

    asked by ryan on November 23, 2012

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