1. Given that 50 grams of ice is heated at -20.0 °C to steam at 135.0 °C. i. Show the graph of the changes from ice to steam ii. Calculate the energy needed to change the ice to steam Please

16,344 results
  1. Chemistry

    Calculate the amount of energy in kilojoules needed to change 225 g of water ice at -10 C to steam at 125 C. The following constants may be useful: Cm(ice)=36.57 J/(mol*C) Cm(water)=75.40 J/(mol*C) Cm(steam)=36.04 J/(mol*C) Delta H(fus)=+6.01 kJ/mol Delta

  2. chemistry

    1. Given that 50 grams of ice is heated at -20.0 °C to steam at 135.0 °C. i. Show the graph of the changes from ice to steam ii. Calculate the energy needed to change the ice to steam Please use these values: Heat of fusion = 334.16 J g¯1 Heat of

  3. Physics

    How much heat is added to a 10.0 g of ice at -20.0 degrees Celsius to convert it to steam at 120.0 degrees Celsius? compute and add the following heats: heat to heat ice from -20C to 0C heat to melt ice at 0C Heat to heat water from 0 to 100C heat to

  4. 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

  5. Chemistry

    How many grams of ice could be melted by the energy obtained as 18.0 grams of steam is condensed at 100.0 degrees celcius and cooled to 0.0 degrees celcius?

  6. physics

    7. 50g of steam at 100 degree centigrade is passed into a mixture of 100g of ice and 200gm of water at 0 degree centigrade. Find the rise in temperature. (S.L. H. Of steam = 540 cal/g and Lf of ice = 80cal/g)

  7. Math

    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°C to a final temperature of 65°C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at

  8. chemistry

    Calculate the heat required to convert 175 grams of ice (at the melting point) completely to steam (at the boiling point)

  9. Chemistry

    Given that the specific heat capacities of ice and steam are 2.06 J/g degrees C and 2.03 J/g degrees C, respectively, calculate the total quantity of heat evolved when 10.0 g of steam at 200 degrees C is condensed, cooled, and frozen to ice at -50 degrees

  10. Science

    Find out the amount of heat required to convert 1 gm of ice at -30 ⁰C to 1 gm of steam at 120 ⁰C. Given the specific heat of ice is 2090 J/kg/⁰C, specific heat of water 4180 J/kg/⁰C, specific heat of steam is 2010 J/kg/⁰C, latent heat of ice to

  11. chemistry

    A 8.60-g sample of solid CaSO4·2H2O was heated such that the water turned to steam and was driven off. Assuming ideal behavior, what volume would that steam occupy at 1.00 atm and 100.0 °C?

  12. general chemistry

    Calculate the total amount of heat absorbed (in kJ) when 2.00 mol of ice at -30.0°C is converted to steam at 140.0°C. (Cp(ice)=2.06 J/g∘C; Cp(water)=4.18 J/g∘C; Cp(steam)=1.87 J/g∘C) (7 pts: Given-1point; Formula-1point; Substitution-1point;

  13. 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

  14. Chem; States of Matter

    To an insulated container with 100.0 g H2O (l) at 20.0 degrees C, 175 g steam at 100.0 degrees C and 1.65 kg of ice at 0.0 degrees C are added. a) What mass of ice remains unmelted after equilibrium is reached? b) what additional mass of steam should be

  15. Food Chemistry

    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°C to a final temperature of 65°C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at

  16. chemistry

    How much heat in kilojoules is evolved in converting 1.00 mol of steam at 145 Celsius to ice at -50 Celsius? Please, all particular steps and conversions between mole and grams of steam, H2O and ice. Thanks!

  17. Chemistry

    1. How much heat is added to 40.0 g of ice at –20 o C to convert it to steam at 120 oC? 2. How much heat is added to 25.0 g of ice at –25 o C to convert it to steam at 120 oC? 3. How much heat is added to 10.0 g of ice at –20 o C to convert it to

  18. Chemistry

    How much heat in kilojoules is required to warm 10.0 g of ice, initially at -10.0 ∘C, to steam at 115 ∘C. The heat capacity of ice is 2.09 J/g∘C and that of steam is 1.84 J/g∘C.

  19. Chemistry

    How many kJ of heat are required to convert 1.00 g of ice at -25°C to steam at 125°C? s(ice) = 2.108 J/g·°C s(liquid water) = 4.184 J/g·°C s(steam) = 1.996 J/g·°C heat of fusion = 6.01 kJ/mol heat of vaporization = 40.79 kJ/mol

  20. PHYSICS HELP PLEASE

    How much heat has to be added to change 0.500 kg ice from -10C completely to a steam of 110C. The specific heat of ice, water and steam is 2090 J/kg ⋅K, 4186 J/kg⋅K, 2010 J/kg ⋅K respectively. Given that the heat J/kg, the heat of J/kg. Draw of

  21. chemistry

    How much heat (in ) is evolved in converting 1.00 of steam at 150.0 to ice at -55.0? The heat capacity of steam is 2.01 and of ice is 2.09 .

  22. Phyics

    How much energy is required to change a 57 g ice cube from ice at −4◦C to steam at 107◦C? The specific heat of ice is 2090 J/kg ·◦ C and of water 4186 J/kg ·◦ C. The latent heat of fusion of water is 3.33 × 105 J/kg, its latent heat of

  23. physics

    calculate the heat energy needed to convert 2kg of ice at -12 degree celcius to steam at 100 degree celcius. specific heat capacity for ice=2100j/kg K specific latent heat of ice=340000 J/kg specific latent heat for steam =2260000J/kg im having issue in

  24. chemistry

    How much energy in form of heat is required to convert a 10.0-g sample of ice initially at -5.00C to steam at 120C ? Specific heats (in J/g • ºC) of ice, water liquid and steam are 2.108, 4.184 and 1.996 respectively

  25. chemistry

    Calculate the enthalpy change (in kJ) associated with the conversion of 25.0 grams of ice at -4.00 °C to water vapor at 109.0 °C. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K, respectively. For H2O, ΔHfus = 6.01

  26. chemistry

    how much heat (in KJ) is evolved in coverting 1.00 mol of steam at 135.0 degrees celcius to ice at -45.0 degrees celcius? the heat capacity of steam is 12.0 J/g * C and ice is 2.09 J/c * C.

  27. 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

  28. 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) ->

  29. Chemistry

    Topic: Sublimation and Fusion How much heat (in kJ) is required to warm 13.0 g of ice, initially at -14.0 C, to steam at 112.0 °C? The heat capacity of ice is 2.09 J/g⋅°C and that of steam is 2.01 J/g⋅°C. Any help on how to start this is really

  30. physics

    Dry saturated steam at 100 degree C is passed into 250 gm of a mixture of ice and water contained in a calorimeter of thermal capacity 45J/K.When all the ice has just melted,the mass of the content has increased by 10 gm due to condensed steam.Assuming no

  31. Chemistry

    How much energy does it take to convert 0.800 kg ice at -20.°C to steam at 250.°C? Specific heat capacities: ice, 2.1 J g-1 °C-1 liquid, 4.2 J g-1 °C-1 steam, 2.0 J g-1 °C-1 ΔHvap = 40.7 kJ/mol, ΔHfus = 6.02 kJ/mol This is what I tried to do:

  32. Chemistry

    How much heat (in kilojoules) is required to warm 11.0 g of ice, initially at -14.0 ∘C, to steam at 112 ∘C? The heat capacity of ice is 2.09 Jg−1∘C−1 and that of steam is 2.01 Jg−1∘C−1.

  33. Physics

    Dry saturated steam at 100'C is passed into 250gm of a mixture of ice and water contained in a calorimeter of thermal capacity 45J/K.When all the ice has just melted,the mass of the content of the calorimeter has increased by 10gm due to condensed

  34. chemistry

    if 180 grams of ice at -123 degrees celsius is heated to steam at 125 degrees celsius, how much energy would it take?

  35. chemistry

    the heat of fusion water is335 J/g. The heat of evaporization of water is 2.26 kJ/g, the specific heat of ice is 2.05 J/Deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be needed

  36. 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).

  37. chemistry

    How much heat (in g ) is evolved in converting 1.00 of steam at 145.0 to ice at -45.0? The heat capacity of steam is 2.01 and of ice is 2.09 .

  38. chemistry

    how much heat energy is released from cooling 35 grams of steam at 135 degrees celcius down to freezing it to negative 45 degrees celcius?

  39. Science

    Why does the temperature remain constant around 0 degrees C and 100 degrees C? For what? For water when it is freezing or boiling? Or do you have another question in mind? Sorry, it's for water when it is freezing or boiling. Think of it this way. Start

  40. Chemistry

    How much heat is required to change 10 grams of ice at 0 deg. C to steam at 100 deg C?

  41. Chemistry

    Given that the specific heat capacities of ice and steam are 2.06 J/g · ◦C and 2.03 J/g· ◦C, respectively, calculate the total quantity of heat necessary to melt 59.4 g of ice at −50.0 ◦C and heat it to steam at 200◦C. The molar heats of fusion

  42. 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

  43. Science

    Ten grams of ice are heated in a closed container until it turns to steam. What is the mass of the steam?

  44. Chemistry

    Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 C are convert to 50 grams of ice at 125 C please help

  45. Chemestry

    Calculater the amount of heat in kilojoules released when 50 grams of steam at 125 C are converted to 50 grams of ice at -125 C?

  46. Physics

    How do i determine the mass of ice initially in the calorimeter when dry saturated steam is passed into 250g of a mixture of ice and water in a calorimeter of thermal capacity 45J/K when all the ice has just melted,and the mass of the content in the

  47. Physics

    How many calories are released when 3 grams of 100º C steam turns to 0º C ice

  48. Science

    Find out the amount of heat required to convert 1 gm of ice at -30 ⁰C to 1 gm of steam at 120 ⁰C. Given the specific heat of ice is 2090 J/kg/⁰C, specific heat of water 4180 J/kg/⁰C, specific heat of steam is 2010 J/kg/⁰C, latent heat of ice to

  49. 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.

  50. Chemistry II

    How much heat (in kJ) is required to warm 10.0 g of ice, initially at -15.0 ∘C, to steam at 114.0 ∘C? The heat capacity of ice is 2.09 J/g⋅∘C and that of steam is 2.01 J/g⋅∘C.

  51. chemistry

    How much heat (in ) is evolved in converting 1.00 of steam at 150.0 to ice at -55.0? The heat capacity of steam is 2.01 and of ice is 2.09 .

  52. Science

    A 6.90-g sample of solid NiSO4·6H2O was heated such that the water turned to steam and was driven off. Assuming ideal behavior, what volume would that steam occupy at 1.00 atm and 100.0 °C?

  53. chemistry

    A 8.50-g sample of solid AlCl3·6H2O was heated such that the water turned to steam and was driven off. Assuming ideal behavior, what volume would that steam occupy at 1.00 atm and 100.0 °C?

  54. chemistry

    Hey, I'm struggling a bit with this thermal energy question: One major cost in the brewing history is the cost of energy used in running a plant. Much of the heating plant is accomplished by the cooling and or condensing of steam. When 50.0 mg of griest is

  55. Physics

    what is the number of grams of steam at 100 degrees C that will condense as 5g of ice at 0 degrees C melts?

  56. chemistry

    Iron reacts with superheated steam(H2O) to form hydrogen gas and the oxide Fe2O3. (write) Balance this chemical reaction. And if 10grams of Iron react with excess steam, how many grams of Fe2O3 are produced? How many grams of H gas? How many grams of H2O

  57. Chemistry

    A 2.75 kg block of ice is heated until it completely melts. It is then heated again until it completely changes to water vapor. Is more energy required to melt the ice or to vaporize the liquid water.

  58. Physics

    Given: cp,ice = 2090 J/kg◦C cp,water = 4186 J/kg ·◦C cp,steam = 2010 J/kg ◦C Lf = 3.33 × 105 J/kg Lv = 2.26 × 106 J/kg How much energy is required to change a 37 g ice cube from ice at −10◦C to steam at 116◦C? Answer in units of J. ok.. so

  59. Physics!!!Please Help!

    -Steam at 100 ¡ãC is mixed with 166.4 g of ice at ¨C32.8 ¡ãC, in a thermally insulated container, to produce water at 44.6 ¡ãC. Ignore any heat absorption by the container. -Cwater = 4186. J/(kg ¡ãC) -Cice = 2090. J/(kg ¡ãC) -Lf,water = 3.33

  60. Chemistry

    48g of ice at its melting point is heated with steam at its condensation point. The final temperature of the system is 50 degree Celsius. How much steam was used to melt the ice? q=(48g)(1mol/18g)(50-0C)(0.97kcal/mol*C) = 129kcal Not sure where to go from

  61. physics

    What is the final equilibrium temperature when 40.0 grams of ice at 0°C is mixed with 5.00 grams of steam at 120°C? The specific heat of ice is 2.10 kJ/kg °C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the specific heat of water 4.186 kJ/kg °C,

  62. Chemistry

    How much heat is required to raise 75 grams of 0 degree Celsius ice to 135 degree Celsius steam?

  63. chemistry

    1. Given that 50 grams of ice is heated at -20.0 °C to steam at 135.0 °C. i. Show the graph of the changes from ice to steam ii. Calculate the energy needed to change the ice to steam Please use these values: Heat of fusion = 334.16 J g¯1 Heat of

  64. Physics

    How do i determine the rise in temperature when the passage of steam is continued until a further 15g of steam has condensed and the mixture is in thermal equilibrium when dry saturated steam at 100 degrees C is passed into 25g of a mixture of ice and

  65. Chemisty

    In an experiment, 23.0 g of ice at –25°C is converted into steam with a temperature of 124°C. How much heat is required for the process? The following data may be of use: vap = 2260 J/g; Hfus = 334 J/g; Cp(ice) = 2.06 J/g • °C; Cp(water) =

  66. Chemisty

    In an experiment, 230 kJ of heat energy are released to the surroundings when steam is converted to liquid water. Calculate the number of grams of water condensed. The following data may be of use: vap = 2260 J/g; Hfus = 334 J/g; Cp(ice) = 2.06

  67. chemistry

    What is the energy released when steam at 25 g of steam at 10 degree celcius is cooled to ice at-10 degree celcius work heat change for the following changes calculated 150 degree Celsius steam --150 degree water 150 degree water to 0 degree water 100

  68. chemistry

    is this the right anser? for this problem please let me know thanks calculate the amount of heat in kilojoules released when 50 grams of steam at 125 C are converted to 50 grams of ice at -125 C so 50 grams of H2O Ti= 124 C Tf= -125 C q=? J=? q=m *Cp * At

  69. Chemistry

    What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is Tf= 109 C? Is it in the steam phase?

  70. Chemistry II

    How many grams of gasoline would you need to burn if you started with a 275 gram piece of ice that started at -25 OC and by the end of the experiment had 100 grams of steam and the rest liquid water?

  71. chemistry

    How many grams of gasoline would you need to burn if you started with 275 gram piece of ice that started at -25C and by the end of the expirement had 100 grams of steam and the rest liquid water?

  72. Chemistry

    How much heat (in kJ) is required to warm 12.0g of ice, initially at -12.0C, to steam at 111.0?C The heat capacity of ice is 2.09J/(g*C) and that of steam is 2.01J/(g*C). I got 5.64 but I did something wrong apparently.

  73. physics

    A 80 g ice cube at 0°C is heated until 55 g has become water at 100°C and 25 g has become steam at 100°C. How much energy was added to accomplish the transformation?

  74. Physical Science

    How do you calculate the number of grams of ice at 32 degrees celsius that can be melted by 1g of steam?

  75. Science

    And ice cube Wayne 1 g is placed in our closed insulated container with 9 g of water at 20°C 68°F after 24 hours elapse the container will hold what (1) ten grams of water (2) one gram of ice and nine grams of water (3) five grams of ice and five grams

  76. 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.

  77. Chemistry question! help ASAP

    Please help with this! It is my last question and I am struggling! How many joules of heat are needed to change 45.0 grams of ice at -20.0 °C to steam at 120.0 °C?

  78. Chemistry

    How much energy would be needed to turn 183.7 g of Ice at -27 degrees celcius to steam at 135 degrees celcius?

  79. chemistry

    How much heat (in ) is required to warm 11.0 of ice, initially at -13.0, to steam at 111.0? The heat capacity of ice is 2.09 and that of steam is 2.01

  80. Chemistry

    How much heat (in kJ) is required to warm 10.0 g of ice, initially at -15.0 ∘C, to steam at 114.0 ∘C? The heat capacity of ice is 2.09 J/g⋅∘C and that of steam is 2.01 J/g⋅∘C.

  81. chemistry

    How much heat (in kJ) is required to warm 13.0 g of ice, initially at -13.0 ∘C, to steam at 111.0 ∘C? The heat capacity of ice is 2.09 J/g⋅∘C and that of steam is 2.01 J/g⋅∘C.

  82. physics

    7. 50g of steam at 100 degree centigrade is passed into a mixture of 100g of ice and 200gm of water at 0 degree centigrade. Find the rise in temperature. (S.L. H. Of steam = 540 cal/g and Lf of ice = 80cal/g)

  83. Physics

    How much energy is required to change a 58 g ice cube from ice at −1◦C to steam at 101◦C? The specific heat of ice is 2090 J/kg ·◦ C and of water 4186 J/kg ·◦ C. The latent heat of fusion of water is 3.33 × 105 J/kg, its latent heat of

  84. Physics

    A cylindrical copper rod of length 1.20 m and cross-sectional area 5.60 cm^2 is insulated to prevent heat loss through its surface. The ends are maintained at a temperature difference of 100 degrees C by having one end in a water-ice mixture and the other

  85. College Physics

    How much energy is required to bring 10.0 grams of ice at -5.00 degrees to 105-degree steam? Assume the system is isolated so that no mass is lost to the surroundings

  86. chemistry

    A 8.80-g sample of solid SnCl2·2H2O was heated such that the water turned to steam and was driven off. Assuming ideal behavior, what volume would that steam occupy at 1.00 atm and 100.0 °C?

  87. chemistry/please double check

    Hi, I just need to know if I finally got this exercise right. Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 Celsius are converted to 50 grams of ice at -125 Celsius. so, qw= 50*4.184J/g C (125 C-o)= 26.15 x 10^3 qi=

  88. Chemistry

    A 4.30g sample of solid BaCl2 2H2O was heated such that the water turned to steam and was driven off.Assuming ideal behavior, what volume would that steam occupy at 1.00atm and 373K?

  89. Thermodynamic

    One Kg steam with a quality of 0.2 is heated in a piston / cylinder vessel at a constant pressure of 200 KPa unit the temperature reaches 400 degree C. calculate the work done by the steam.

  90. Physical Science

    Calculate the number of grams of ice at 32 celsius that can be melted by 1g of 100 degrees celsius steam

  91. Physics

    What is the final temperature reached by the addition of 11.4 grams of steam at 100C to 681 grams water at 25C in an aluminum calorimeter having a mass of 781 grams? C of water=1 cal/gc C of aluminum= 0.22 cal/gc L steam= 540cal/g My Attempt Qloss=Qgain

  92. AP Chemistry

    Given that the specific heat capacities of ice and steam are 2.06 J/g · ◦C and 2.03 J/g·◦C, respectively, calculate the total quantity of heat necessary to melt 19.2 g of ice at −50.0◦C and heat it to steam at 200◦C. The molar heats of fusion

  93. AP Chemistry

    Given that the specific heat capacities of ice and steam are 2.06 J/g ·◦C and 2.03 J/g·◦C,respectively, calculate the total quantity of heat necessary to melt 19.2 g of ice at −50.0 ◦C and heat it to steam at 200◦C. The molar heats of fusion

  94. Physics-

    -Steam at 100 ¡ãC is mixed with 166.4 g of ice at ¨C32.8 ¡ãC, in a thermally insulated container, to produce water at 44.6 ¡ãC. Ignore any heat absorption by the container. -Cwater = 4186. J/(kg ¡ãC) -Cice = 2090. J/(kg ¡ãC) -Lf,water = 3.33

  95. Physics HELP PLEASE

    If 10-kg of ice at 0 degrees Celsius is added to 2-kg of steam at 100 degrees Celsius, the temperature of the resulting mixture is? Use Joules. ANSWER: 40 Specific Heats: Ice = 2060 Steam = 2020 Latent Heats: Water melting = 3.33x10^5 Water boiling =

  96. science

    The cider is heated from an initial temperature of 4°C to a final temperature of 65°C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at 85°C. Calculate the mass of steam required to heat 150 kg of cider. (For the

  97. Chemistry

    Given that the specific heat capacities of ice and steam are 2.06 J/g degrees celsius, respectively, and considering the information about water given in exercise 16, calculate the total quantity of heat evolved when 10.0g of steam at 200. degrees celsius

  98. Chemistry/please check

    Calculate the amount of heat in kilojoules reased when 50 of steam at 125 C are converted to 50 grams of ice at -125 C. AHsteam = m * Cp steam * At q1= 50g * 4.184 J/g C * (125-100)C= 5.23 x 10^J q2= m * AH 50g * 5230 J/g = 2.61 x 10^5 J q3= 50g *4.184 J/g

  99. science

    You have 50 grams of steam that condenses on a cold surface. The steam goes from 100 degree C steam into 100 degree C liquid water. How much heat is involved?

  100. general chemistry

    How much heat in kilojoules is evolved in converting 1.50moles of steam at 150 degrees celcius to ice at -60.0 degrees celcius? The heat capacity of steam is 1.84J/g degree C and that of ice is 2.09J/g degree C.

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