1. Physical Science

    A block of ice at 0^\circ {\rm C} is dropped from a height that causes it to completely melt upon impact. Assume that there is no air resistance and that all the energy goes into melting the ice. What is the height necessary for this to occur.

    asked by James on October 18, 2012
  2. physics

    A solid ball and a hollow ball, each with a mass of 6 kg and radius of 0.1 m, start from rest and roll down a ramp of length 3 m at an incline of 31°. An ice cube of the same mass slides without friction down the same ramp. What is the speed of the ice

    asked by need help as soon as possible on March 25, 2011
  3. chemistry

    How much heat, in kilojoules, is evolved when a 3.70 kg sample of molten Cu freezes? The normal boiling point is 1357 K, and heat of fusion is 13.05 KJ/mol. 2.) How much heat must be absorbed at 1357 K to melt a bar of copper (80 * 10 * 12 cm) assume d =

    asked by Andrew on February 15, 2010
  4. chemistry

    How much heat, in kilojoules, is evolved when a 3.70 kg sample of molten Cu freezes? The normal boiling point is 1357 K, and heat of fusion is 13.05 KJ/mol. 2.) How much heat must be absorbed at 1357 K to melt a bar of copper (80 * 10 * 12 cm) assume d =

    asked by Andrew on February 15, 2010
  5. physics

    A 0.299-m-thick sheet of ice covers a lake. The air temperature at the ice surface is -15.0 °C. In 4.90 minutes, the ice thickens by a small amount. Assume that no heat flows from the ground below into the water and that the added ice is very thin

    asked by anonymous on April 18, 2012
  6. physics

    The polar ice caps contain about 2.76E+19 kg of ice. This mass contributes negligibly to the moment of inertia of Earth because it is located at the poles, close to the axis of rotation. Estimate the change in the length of the day that would be expected

    asked by Jordan on April 9, 2010
  7. Chemistry

    When a 1.1 gram ice cube is placed into a 10.0 mL graduated cylinder, the level of water inside the graduated cylinder raises 1.20 mL. What is the Density of the ice cube? My Work: Density = 1.1g/10.0 mL + 1.20 mL? my answer came out to be; Density= .0982

    asked by Alex on September 3, 2014
  8. Physics

    Find the amount of heat required to convert 10g of ice to steam at 110 degree Celsius.

    asked by Dabgadang on March 17, 2011
  9. Chemistry

    What quantity of heat is required to convert 200g of ice at 0.00C into water at 50C? I know that im suppose to use the E=mc(Delta T) but im not sure how...

    asked by Alex on July 17, 2014
  10. UNP

    Find the amount of heat required to convert 10g of ice to steam at 110 degree Celsius.

    asked by Dangadang on March 16, 2011
  11. Chemistry

    How much heat energy, in kilojoules, is required to convert 48.0g of ice at −18.0 ∘C to water at 25.0 ∘C ? Please show all steps. i don't know where to start

    asked by Anna on December 9, 2014
  12. Physics

    A cube of ice is taken from the freezer at -8.5 degrees celsius and placed in a 100 gram aluminum calorimeter filled with 300 grams of water at room temperature of 20 degrees celsius. the final situation is observed to be all water at 17 degrees celsius.

    asked by Donald on March 18, 2012
  13. Physics

    A solid ball and a hollow ball, each with a mass of 2 kg and radius of 0.1 m, start from rest and roll down a ramp of length 3 m at an incline of 44°. An ice cube of the same mass slides without friction down the same ramp. What is the speed of the ice

    asked by Maria on June 19, 2012
  14. ap chem

    if 3.2 kcal of heat is added to 1kg of ice at 0 celcius, how much ice is produced and how much ice is left?

    asked by michelle on October 21, 2015
  15. Chemistry

    Calculate the temperature change in the water upon complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC*Delta T to calculate the temperature change of the 314 g of water. under the following

    asked by Ricardo on November 18, 2010
  16. chemistry

    How much energy (in kilojoules) is needed to heat 4.00g of ice from -11.0∘C to 21.5∘C? The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol) for liquid water.

    asked by Sally on December 13, 2014
  17. Chemisty 132

    How much energy (in kilojoules) is needed to heat 5.55g of ice from -13.5 ∘ C to 26.5 ∘ C. The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol) for liquid water.

    asked by Kayla on September 7, 2014
  18. Young Harris College

    How much energy is needed to heat 8.50 g of ice from -30.0 C to 70.0 C? The heat of fusion of water is 6.01 kJ/mol, and the molar heat capacity is 36.6 J/(mol.K) for ice and 75.3 J/(mol.K) for liquid water. I got 19.24kJ but it isn't correct!!

    asked by Jhon on September 7, 2014
  19. chemistry

    How much energy (in kilojoules) is needed to heat 5.45g of ice from -12.0 C to 32.0 C? The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K x mol) for ice and 75.3 J/(k x mol) for liquid water

    asked by emily on December 2, 2010
  20. Chemisty 132

    How much energy (in kilojoules) is needed to heat 5.55g of ice from -13.5 ∘ C to 26.5 ∘ C. The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol) for liquid water.

    asked by Kayla on September 7, 2014
  21. 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
  22. Chemistry/Calorimetry

    You buy coffee (200.0 ml) served in a styrofoam cup. You are up late working in a chemistry lab, and want to drink the coffee right away, but at 95.0 degrees C, it is too hot to drink. You like the temperature of your coffee to be 79.0 ± 1.0 degrees C.

    asked by Jen on February 23, 2012
  23. Physics

    A calorimeter with specific heat of 490x10^2J/kg^1K^1 has a mass of 2.00x10^-1kg that contains 3.00x10^-1kg of liquid water at 40C. If 5.00x10^-2kg of ice at 0C is dropped into the water. Find the final temperature of the mixture where the ice has melted

    asked by Tsunayoshi on February 9, 2014
  24. college physics

    A cube of ice is taken from the freezer at -9.5 degree Celsius and placed in a 99 g aluminum calorimeter filled with 327 g of water at room temperature of 20.0 degree celsius. The final situation is observed to be all water at 17.0 degree Celsius. What was

    asked by Nate on January 18, 2011
  25. Chemistry

    Aluminum has a density of 2.99 grams per cubic cm. and a specific heat of 0.22 calories per gram degree Celsius. A cube of aluminum is sitting out in the sun where it absorbs 16.2 calories of heat and warms from 62*F to 149*F How many inches wide are the

    asked by Liz on February 2, 2011
  26. Chemistry

    Aluminum has a density of 2.99 grams per cubic cm. and a specific heat of 0.22 calories per gram degree Celsius. A cube of aluminum is sitting out in the sun where it absorbs 16.2 calories of heat and warms from 62*F to 149*F How many inches wide are the

    asked by Liz on February 2, 2011
  27. chemistry

    Five kg of ice cubes are moved from the freezing compartment of a refrigerator into a home freezer. The refrigerator's compartment is kept at -4.0 celsius. the home freezer is kept at -17 celsius. How much heat does the freezer's cooling systeam remove

    asked by evelyn on April 6, 2010
  28. Physical Science

    Lead is a soft, dense metal with a specific heat of 0.117 J/goC, a melting point of 328.0 oC, and a heat of fusion of 23012 J/g. How much heat (in kilojoules) must be provided to melt a 350.0 kg sample of lead that is initially at 20 oC?

    asked by Ashley on October 27, 2014
  29. physics

    A 20 g lead bullet leaves a rifle at a temperature of 47 degrees celcieus and travels at a velocity of 500 m/s until it hits a large block of ice at 0 degrees celcuis and comes to rest within it. How much ice will melt?

    asked by jjwatt on January 19, 2013
  30. Physics

    A 20 g lead bullet leaves a rifle at a temperature of 47 degrees celcieus and travels at a velocity of 500 m/s until it hits a large block of ice at 0 degrees celcuis and comes to rest within it. How much ice will melt?

    asked by Joe on January 19, 2013
  31. Chemistry

    How much ice (in grams) be added to lower the temperature of 355 mL of water from 25 ∘C to 5 ∘C ? (Assume the following: the density of water is 1.0 g/mL, the ice is at 0 ∘C, the heat of fusion of ice is 6.02 kJ/mol, and the volume of water produced

    asked by Anonymous on January 19, 2017
  32. Physics/chem

    Trying to beat the heat of summer, a physics grad student went to the local toy store and purchased a child's plastic swimming pool. Upon returning home, he filled it with 154 liters of water at 25°C. Realizing that the water would probably not be cool

    asked by BG on November 20, 2010
  33. science

    While doing a scinece project with my daughter we attempted to melt two sugar cubes. We poured alcohol on one sugar cube and vinegar on the other. The sugar cube with the alcohol melted at a faster speed. Why was this?

    asked by alexis on May 13, 2011
  34. Chemistry

    An ice cube at 0 degrees Celsius was dropped into 30.0 g of water in a cup at 45.0 degrees Celsius. At the instant that all of the ice was melted, the temperature of the water i the cup was 19.5 degrees Celsius. What was the mass of the ice cube?

    asked by Scoob on April 21, 2010
  35. Chemistry

    An ice cube at 0 degrees Celsius was dropped into 30.0g of water in a cup at 45 degrees Celsius. At the instant that all of the ice was melted, the temperature of the water in the cup was 19.5 degrees Celsius. What was the mass of the ice cube?

    asked by Help1001 on April 23, 2010
  36. chem

    im working on a lab in chemistry called measuring energy changes :Calorimetry how to you determine the molar latent heat of fusion of ice using q=mcT ?? why was the ice driedbefore it was placed in water? why is hot warer ysed rather than room temp? in

    asked by jess on February 11, 2010
  37. Physics

    a 50 kg ice skater is skating on a frozen lake where the ice has a coefficient of friction of .08. How much force is required to push her across the ice at a constant velocity?

    asked by caroline on October 5, 2016
  38. Physics

    A portion of an electric circuit connected to a 7 ohm resistor is embedded in 1.20 kg of a solid substance in a calorimeter. The external portion of the circuit is connected to a 100 volt power supply. (a) Assuming that all the heat generated by the

    asked by Fred on May 10, 2009
  39. Chemistry

    using a coffee calorimeter, it is found that when an ice cube weighing 24.6g melts, it absorbs 8.19kJ of heat. calculate delta H for the phase change represented by the thermochemical equation: H2O(s) ->H2O(l)

    asked by Kera on April 21, 2014
  40. Chemisty

    LEAD IS A SOFT, DENSE METAL WITH A SPECIFIC HEAT OF 0.028KCAL/KGC, A MELTING POINT OF 328.0C, AND A HEAT FUSION OF5.5KCAL/KG. HOW MUCH HEAT MUST BE PROVIDED TO MELT A 250.0KG SAMPLE OF LEAD WITH A TEMPERATURE OF 20.0C?

    asked by Jessica on October 23, 2008
  41. Physical Science

    plz i need help If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water.

    asked by Albert Kim on April 15, 2009
  42. physics

    An ice cube floats with 1/9 of its volume below the surface of water, calculate the density of ice.

    asked by anonymous on May 31, 2016
  43. 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
  44. Science

    If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water.

    asked by Kim on April 15, 2009
  45. Physical Science

    If the density of ice is 0.92 g/cm^3, what percent of an ice cube’s (or iceberg’s) mass is above water.

    asked by Albert on April 15, 2009
  46. Chemistry

    What is the final temperature when 2.50 x 10^5 J are added to 0.950 kg of ice at 0.0 degrees C? The specific heat capacity of water is 4186 J/(kg·degrees C) and the latent heat of fusion for ice is 3.35×10^3 J/kg.

    asked by A on March 15, 2018
  47. Chemistry

    Assume that you take a 10.0g ice cube out of the freezer at -10 C. How much ice would be left unmelted after you added 340 J of energy?

    asked by Joe on January 15, 2008
  48. math

    Find the sum of 8x cube y +2xy cube -18and -12x cube y +7xy cube and subtract it from the sum of 19x cube y -17xy cube +12and -21+5xy cube .? PLEASE SOLVE IT ?????

    asked by Anonymous on June 4, 2017
  49. Physics

    divide both sides of the equation by mass, it divides out. mass*HeatFusion=mass*gh How do you calculate the height that a block of ice at 0°C must be dropped to completely melt upon impact. Assume that all of the initial gravitational potential energy of

    asked by bobpursley on November 5, 2006
  50. physics

    A revolutionary new diet advertises that one can lose weight simply by eating ice. When one eats ice,chemical energy in the body is used to melt the ice and then raise the temperature of the melted ice to the temperature of the body, 37 degrees

    asked by jenny on January 22, 2011
  51. College Chemistry

    What is the final temperature, in oC, after a 26.5 g piece of ice, at 0oC, is placed in a styrofoam cup with 122 g of water initially at 73.8oC the specific heat of water = 4.184 JK-1g-1 The heat of fusion of ice = 333 Jg-1

    asked by John on October 7, 2011
  52. physics

    1 kg of ice at 0° C is mixed with 9 kg of water at 50° C (The latent heat of ice is 3.34x105 J/kg and the specific heat capacity of water is 4160 J/kg). What is the resulting temperature?

    asked by calous --- HELP PLEASEE!!! on January 23, 2011
  53. Physics

    25) A 75-g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final temperature is 0 C, then how much ice remains? c) change the ice's mass to 300g, and repeat the problem I don't know how to work

    asked by Y0gi on November 30, 2010
  54. Physics

    3. A calorimeter has a mass of 100g and a specific heat of 0.900 cal/g˚C and contains 400g of water at 40˚C. When 91g of ice at 0.0˚C is added and completely melted, the temperature of the water is 18.2˚C. Calculate the heat fusion of the ice

    asked by Mark jay on April 20, 2017
  55. Physics

    25) A 75-g ice cube at 0 C is placed in 825g of water at 25 C. a) What is the final temperature of the mixture? b) If the final temperature is 0 C, then how much ice remains? c) change the ice's mass to 300g, and repeat the problem

    asked by Y0gi on November 30, 2010
  56. physics

    steam at 100 degree C is passed into a container of negligible heat capacity containing 20 g of ice and 100 g of water at 0 degree C, until the ice is completely melted. Determine the total mass of water in the container. ( specific latent

    asked by Anita Iwu on February 11, 2016
  57. chemistry

    an ice cube has a mass of 4.3g and a mass of 5.0mL it is placed in a 30mL of oil that has a mass of 27 g will the ice cube float or sink in the oil

    asked by allison on December 16, 2014
  58. chemistry

    The heat fusion for napthalene (C10H8) is 18.98 kj/mol and for sodium is 2.60 kj/mol. The amount of heat that would melt 37.0 grams of napthalene would melt how many grams of sodium?

    asked by Jim on June 23, 2010
  59. physics

    7150/(33.5e4) = g ice doesn't work. Am I calculating incorrectly? heat of fusion for water is 334 J/g. You want it in J/g since q is given in the problem in J. The answer will be in units of grams of ice. You will need to change to kg since the problem

    asked by Ann on December 12, 2006
  60. Chemistry

    A 13.0-g sample of ice at -13.0°C is mixed with 112.0 g of water at 80.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J/g · °C, respectively, and

    asked by Katrina on February 13, 2011
  61. Chemisrty

    A 10.0 g sample of ice at -14.0°C is mixed with 124.0 g of water at 81.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J/g°C, respectively, and the

    asked by Nancy on December 9, 2012
  62. Chemistry

    A 14.0-g sample of ice at -18.0°C is mixed with 122.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J/g · °C, respectively, and

    asked by Janesa on March 9, 2012
  63. biology

    A 28.0-g sample of ice at -18.0°C is mixed with 124.0 g of water at 85.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J/g · °C, respectively, and

    asked by layla on October 15, 2011
  64. chemistry

    A 13.0-g sample of ice at -13.0°C is mixed with 105.0 g of water at 78.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J/g · °C, respectively, and

    asked by layla on October 15, 2011
  65. Chemistry

    A 19.6 g sample of ice at -10.0°C is mixed with 100.0 g of water at 75.4°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J g-1 °C-1, respectively,

    asked by Anonymous on November 23, 2010
  66. Chemistry

    What is the minimum amount of ice (at 0 degress C) that must be added to 250mL of water at 23 degrees C in order to cool it to 0 degrees celsius? (Density of water= .98 g/cm^3; heat of fusion= 333J/g; heat capacity of water= 4.184J/g C; and heat capacity

    asked by Kayla on April 3, 2011
  67. Physics

    A container contains 15 liters af water at 96 celsius. A 1 kg of ice cube at -20 celsius is dropped into the water. No heat is lost to the surroundings. What will the final mixing temperature be?

    asked by Thermodynamics on February 17, 2014
  68. math

    A 12 cm by 12 cm ice cube tray is in the shape of a cuboid with twelve hemispheres inset. The depth of each hemispheres is 1 cm. a) If all the hemispheres were filled with water, calculate the total volume of water that the ice cube tray could hold. It is

    asked by Lucas on April 28, 2014
  69. Chemistry

    A 152 g sample of ice at –37 degree C is heated until it turns into liquid water at 0 degree C. How do you find the change in heat content in the system? I've found H(I) [Change in heat of the ice] to be 11416.72 but im still stuck on the change of heat

    asked by Safld on March 28, 2017
  70. Chemistry

    calculate the total amount of heat needed to change 500g of ice at -10*C into 500g of steam at 120*C. do this by calculating the ehat required for each of the following steps and adding to get the total: step 1. ice (-10C)-> ice (0C) step 2. ice (0C) ->

    asked by Lyila on May 21, 2011
  71. physics

    134 g of water at 7°C is added to ice at 0°C. If the final temperature of the system (which you can assume is isolated) is 0°C, determine HOW MUCH ICE MELTED. The specific heat of water is 4186 J/kg·°C. The latent heat of fusion for H2O is 335,000

    asked by Joseph on November 14, 2012
  72. Chemistry

    High quality coal (anthracite) is almost pure carbon. The combustion of carbon to carbon dioxide releases 393 kJ per mol of carbon burnt. If 1.000 kg of anthracite is burnt: (i) How much heat is released? (ii) How much ice (in kg) at 273 K could be melted

    asked by S on November 21, 2017
  73. Physics Needy Help

    A tank of water has been outdoors in cold weather, and a slab of ice 5.8 cm thick has formed on its surface (Fig. 18-46). The air above the ice is at -14°C. Calculate the rate of formation of ice (in centimeters per hour) on the ice slab. Take the thermal

    asked by Bobby on January 12, 2012
  74. Physics

    A tank of water has been outdoors in cold weather, and a slab of ice 5.8 cm thick has formed on its surface (Fig. 18-46). The air above the ice is at -14°C. Calculate the rate of formation of ice (in centimeters per hour) on the ice slab. Take the thermal

    asked by Bobby on January 12, 2012
  75. Physics

    Calculate the height that a block of ice at 0°C must be dropped to completely melt upon impact. Assume that all of the initial gravitational potential energy of the block goes into melting the ice. Hmmmm. http://www.jiskha.com/display.cgi?id=1162768243

    asked by Jennifer on November 5, 2006
  76. physical science

    Suppose you are camping in the mountains and you need to melt 1.8 kg of snow at 0.0 degC to 70.0 degC. The specific heat of water is 4186 j/kg*C while the latent heat of fusion for water equals 3.34 x 10^5 J/kg. How much heat will be needed? Express in KJ.

    asked by Paul on March 18, 2014
  77. chem3a

    How much heat in kilojoules is evolved in converting 2.00 mol of steam at 145 ∘C to ice at -35.0 ∘C? The heat capacity of steam is 1.84 J/g∘C and that of ice is 2.09 J/g∘C.

    asked by whit on December 3, 2016
  78. Science

    Aluminum foil is lying on the sidewalk in the sun for approx 1 hr. Put an ice cube from a drink and put it on the foil.... Which direction wll the heat energy flow from?

    asked by Kel on January 6, 2008
  79. physical science

    Lead is a soft, dense metal with a specific heat of 0.028 kcal/kg·C°, a melting point of 328.0°C, and a heat of fusion of 5.5 kcal/kg. How much heat must be provided to melt a 202.2 kg sample of lead with a temperature of 20.0°C?

    asked by Anonymous on October 12, 2010
  80. Physical Science

    lead has specific heat of .028kcal/kgC, melting point of 328 degrees C and a heat fusion of 5.5 kcal/kg. how much heat must be provided to melt a 250kg sample of lead with a temperature of 20 degrees Celsius?

    asked by yolanda on April 8, 2011
  81. CHEMISTRY

    Given that the specific heat capacities of ice and steam are 2.06 J/g°C and 2.03 J/g°C, the molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat capacity of water is 4.18 J/g°C, calculate

    asked by Riley on November 2, 2010
  82. chemistry

    Given that the specific heat capacities of ice and steam are 2.06 J/g°C and 2.03 J/g°C, the molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat capacity of water is 4.18 J/g°C, calculate

    asked by Emily on February 16, 2010
  83. physics

    1. A 0.400 kg sample of aluminum (c = 9.20 x 102 J/kg°C) at 95.0 °C is dropped into a 0.550 kg pot of water which is at 18.0 °C. What temperature will the mixture come to? 2. How much thermal energy is absorbed by a 0.0220 kg ice cube as it melts? The

    asked by anonymous on May 15, 2019
  84. Chemistry

    A 300.0g sample of ice at -30.OC is mixed with 300.0G of water at 90C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capazities of H2O(s) and H20(L) are 2.03 and 4.18 j/g*C respectivly, and the entahply

    asked by Keru on February 24, 2012
  85. Chemistry

    When heat flows from a hot spot to a cooler spot, entropy increases. When heat is forced to flow from a cool spot to a warmer spot, entropy decreases. Marta is looking for something in her house that causes a decrease in entropy. Which of these should she

    asked by Clueless on December 28, 2017
  86. Science

    When heat flows from a hot spot to a cooler spot, entropy increases. When heat is forced to flow from a cool spot to a warmer spot, entropy decreases. Marta is looking for something in her house that causes a decrease in entropy. Which of these should she

    asked by Clueless on December 28, 2017
  87. Chemistry

    Find the amount of heat to be released to convert 40 grams of steam at 108°C to ice at -7°C. The latent heat of fusion and the latent heat of vaporization are 80 cal/g and 540 cal/g respectively. Cp water 4.187 KJ/kg K, Cp ice 2.108 KJ/kg.K, Cp steam

    asked by Anonymous on September 30, 2018
  88. Chemistry

    Each increase in pressure of 100 atm decreases the melting point of ice by about 1.0¡ÆC. Q. One possible explanation of why a skate moves smoothly over ice is that the pressure exerted by the skater on the ice lowers its freezing point and causes it to

    asked by KK on October 3, 2016
  89. Physics

    Inside an insulated container, a 250-g ice cube at 0°C is added to 200 g of water at 18°C. (i) What is the final temperature of the system? (ii) What is the remaining ice mass?

    asked by Meder on April 27, 2013
  90. Science

    A 40.0 g block of ice at -15 degrees C is dropped into a calorimeter (of negligible heat capacity) containing water at 15 degrees C. When equilibrium is reached, the final temperature is 8.0 degrees C. How much water did the calorimeter contain initially?

    asked by Ciara on November 29, 2014
  91. Chemistry

    How many grams of ice at -26.5\, ^\circ C can be completely converted to liquid at 15.0\, ^\circ C if the available heat for this process is 4.50×103 kJ? For ice, use a specific heat of 2.01J/(g\cdot{ ^\circ C}) and H2 = 6.01 kJ/mol.

    asked by Bella on November 21, 2010
  92. Chemistry

    which of the following quantities is not required to calculate the amount of heat energy required to heat water from 25^OC to 55^OC? A-the mass of water sample. B-the initial temp. C-the heat of vaporization for water. D-the final temp. E-the specific heat

    asked by John Height on July 15, 2011
  93. chemestry

    at what temperature does ice melt

    asked by Chad on September 17, 2009
  94. Chemistry

    As an eager scientist on a hot summer day you wish to determine how much ice to buy to add to your cooler which is filled with 4.0 × 101 cans of soda which are warm at 82.9°F. Each can has a mass of 378 g and ideally you want the temperature of the

    asked by Spencer on April 9, 2016
  95. physics

    A 0.25 kg cube of iron is heated and its temperature rises from 23.0 C to 45.0 C. How much heat entered the cube in Joules and in Calories?

    asked by joe on January 26, 2012
  96. chemistry

    How many grams of ice at -11.2 degrees C can be completely converted to liquid at 29.8 degrees C if the available heat for this process is 4.12×10^3 kJ? For ice, use a specific heat of 2.01 J/(g*degrees C) and delta H_fus = 6.01 kJ/mol.

    asked by Lauren on March 4, 2012
  97. ALGEBRA

    If the global climate were to warm significantly as a result of the greenhouse effect or other climatic change, the Arctic ice cap would start to melt. This ice cap contains the equivalent of some 680,000 cubic miles of water. More than 200 million people

    asked by TANGIE on March 3, 2011
  98. CHEM

    You are a researcher for a golf club manufacturer. You are given two identical looking cubes of a metal alloy. You are informed that they are made of the exact same material, but one is a crystalline, while the other is amorphous. It is your job to

    asked by K on November 28, 2007
  99. Chemistry

    How much heat is evolved in converting 1.00 mol of steam at 155.0 ∘C to ice at -45.0 ∘C? The heat capacity of steam is 2.01 J/(g⋅∘C) and of ice is 2.09 J/(g⋅∘C).

    asked by Caleb on September 5, 2016
  100. College chemistry

    How much heat (in kJ) is evolved in converting 1.00 mol of steam at 130.0 C to ice at -50.0 C? The heat capacity of steam is 2.01 J/g*C and of ice is 2.09 J/g*C.

    asked by eddie on January 18, 2010