Part A

How many grams of water can be cooled from 45^circ {rm C} to 20^circ {rm C} by the evaporation of 65 {rm g} of water? (The heat of vaporization of water in this temperature range is 2.4 {rm kJ}/{rm g}. The specific heat of water is 4.18 {rm J}/{rm g}cdot {rm K}.)

How many grams of water can be cooled from 45^circ {rm C} to 20^circ {rm C} by the evaporation of 65 {rm g} of water? (The heat of vaporization of water in this temperature range is 2.4 {rm kJ}/{rm g}. The specific heat of water is 4.18 {rm J}/{rm g}cdot {rm K}.)