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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?

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}.)

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