One day the relative humidity is 90% and the temperature is 25 degrees Celsius. How many grams of water will condense out of each cubic meter of air if the temperature drops to 15 degrees Celsius? How many energy does the condensation from each cubic meter release?
100 grams of ice at -15 degrees C are placed in a container. How much heat in joules must be added to do the following?
(1) Raise the temperature of the ice to 0 degrees C;
(2) Melt the ice;
(3) Heat water from 0 degrees C to 100 degrees C;
(4) Change water to steam.