How much thermal energy must be released from 25 grams of water at 40 degrees C to turn the water into ice at 0 degrees C? The latent heat of fusion of water is 80 calories/gram and the specific heat of water is 1 calorie/(gram * degree C).

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.