Answer to Question #132590 in General Chemistry for Gisselle Medina

Question #132590

Calculate the heat needed (in calories) at 100.0º C to boil 155 g of water.

Expert's answer

Heat of water vaporization 2260 kJ/kg. 1 kJ = 0.239 kcal, 2260 kJ/kg = 540.14 kcal

Q = 540.14*0.155 = 83.7217 kcal = 83721.7 cal.

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