Hat is the quantity of heat required to raise the temperature of of substance A from to at a pressure of 1.0 atm? Substance A has a melting point of 20°C and a heat of fusion of . The boiling point is and the heat of vaporization is at a pressure of 1.0 atm. The specific heats for the solid, liquid, and gaseous phases are 600 J/ (kg • K), 1000 J / (kg • K), and 400 J/(kg • K), respectively.
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