Evaluate change in heat of water vapor steam

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Calculate change in heat when 18.80 g of water vapor steam at 100 C condenses to liquid water and then cools to 20.5. the molar heat capacity of water is 75.3 J/ (mol x C). Delta Hvap= 40.67 KJ/mol. Express answer using 4 significant figures. Also, should your answer be positive or negative?

Reference no: EM13321673

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