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156. The heat of vaporization of a certain refrigerant is 148 J/g. Calculate the number of...
32. An icemaker uses the heat change from evaporation of a refrigerant to freeze water. How...
32. An icemaker uses the heat change from evaporation of a refrigerant to freeze water. How many moles of the refrigerant CCI,F2 must be evaporated to freeze 209 g of water initially at 0°C to make ice at 0 °C? The heat of vaporization of CCI,F2 is 289 J/g. The heat of fusion of water is 334 J/g. A. 0.00 moles B. 1.00 moles C. 2.00 moles D. 3.00 moles E. 4.00 moles
The chlorofluorocarbon refrigerant Freon-12, CCl2F2, was banned in 1995 to help protect the ozone layer. Most...
The chlorofluorocarbon refrigerant Freon-12, CCl2F2, was banned in 1995 to help protect the ozone layer. Most new air conditioning units now use the re- frigerant tetrafluoroethane, CF3CH2F. The enthalpy of vaporization of Freon-12 is 155 Jg–1 and that of tet- rafluoroethane is 215.9 Jg–1. Estimate the number of grams of Freon-12 that must be vaporized to freeze a tray of 16 one-ounce (1 oz = 28 g) ice cubes with the water initially at 18°C. How many grams of tetrafluo-...
Using the heat of fusion for water 334 J/g the heat of vaporization for water 2260...
Using the heat of fusion for water 334 J/g the heat of
vaporization for water 2260 J / g and fhe specific heat of water
4.184 J/g C calculate the total amount of heat for each of the
following
Using the heat of fusion for water, 334 J/g. the heat of vaporication for water 2260 J/6, and the specific heat of water, 4 184J/g °C, calculate the total amount of heat for each of the following Part A joules released...
The heat of vaporization of water is 540 cal/g, and the heat of fusion is 80...
The heat of vaporization of water is 540 cal/g, and the heat of fusion is 80 cal/g. The heat capacity of liquid water is 1 cal g−1 °C−1, and the heat capacity of ice is 0.5 cal g−1 °C−1. 18 g of ice at -6°C is heated until it becomes liquid water at 40°C. How much heat was required for this to occur?
The latent heat of vaporization of H2O at body temperature (37.0 °C) is 2.37E+6 J/kg. To...
The latent heat of vaporization of H2O at body temperature (37.0 °C) is 2.37E+6 J/kg. To cool the body of a 77.9 kg jogger [average specific heat capacity = 3450 J/(kg·°C)] by 1.70 °C, how many kilograms of water in the form of sweat have to be evaporated?
Given that the specific heat capacities of ice and steam are 2.06 J/g°C and 2.03 J/g°C,...
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 the total quantity of heat evolved when 24.1 g of steam at 158°C is condensed, cooled, and frozen to ice at -50.°C.
The latent heat of vaporization of H2O at body temperature (37.0°C) is 2.37E+6 J/kg. To cool...
The latent heat of vaporization of H2O at body temperature (37.0°C) is 2.37E+6 J/kg. To cool the body of a 74.6 kg jogger [average specific heat capacity = 3480 J/(kg*°C)] by 1.20°C, how many kilograms of water in the form of sweat have to be evaporated?
The latent heat of vaporization of H2O at body temperature (37.0°C) is 2.39E+6 J/kg. To cool...
The latent heat of vaporization of H2O at body temperature (37.0°C) is 2.39E+6 J/kg. To cool the body of a 72.6 kg jogger [average specific heat capacity = 3530 J/(kg*°C)] by 1.10°C, how many kilograms of water in the form of sweat have to be evaporated?
4-10. The latent heat of fusion of ice is 333 kJ/kg. In the freezer compartment of...
4-10. The latent heat of fusion of ice is 333 kJ/kg. In the freezer compartment of a refrigerator, a tray holds 12 cubes of water each of mass 8.0 g. If the C.O.P. of the refrigerator is 3.3. how many kilowatt-hours of electrical energy would be required to run the refrigerator to change the water cubes (at 0°C) into ice cubes (at 0°C)?
heat capacity of ?2?(?) 37.7 J/(mol⋅K) heat capacity of ?2?(?) 75.3 J/(mol⋅K) enthalpy of fusion of...
heat capacity of ?2?(?) 37.7 J/(mol⋅K) heat capacity of ?2?(?) 75.3 J/(mol⋅K) enthalpy of fusion of ?2? 6.01 kJ/mol Two 20.0‑g ice cubes at −14.0 °C are placed into 215 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
32. An icemaker uses the heat change from evaporation of a refrigerant to freeze water. How many moles of the refrigerant CCI,F2 must be evaporated to freeze 209 g of water initially at 0°C to make ice at 0 °C? The heat of vaporization of CCI,F2 is 289 J/g. The heat of fusion of water is 334 J/g. A. 0.00 moles B. 1.00 moles C. 2.00 moles D. 3.00 moles E. 4.00 moles
Using the heat of fusion for water 334 J/g the heat of
vaporization for water 2260 J / g and fhe specific heat of water
4.184 J/g C calculate the total amount of heat for each of the
following
Using the heat of fusion for water, 334 J/g. the heat of vaporication for water 2260 J/6, and the specific heat of water, 4 184J/g °C, calculate the total amount of heat for each of the following Part A joules released...
4-10. The latent heat of fusion of ice is 333 kJ/kg. In the freezer compartment of a refrigerator, a tray holds 12 cubes of water each of mass 8.0 g. If the C.O.P. of the refrigerator is 3.3. how many kilowatt-hours of electrical energy would be required to run the refrigerator to change the water cubes (at 0°C) into ice cubes (at 0°C)?
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