How much heat is necessary to change 30 g of water at 100°C into steam at 100°C?
A) 0.24 kcal
B) 16200 kcal
C) 16.2 kcal
D) 2.4 kcal

Name: How much heat is necessary to change 30 g of water at 100°C into steam at 100°C? A) 0.24 kcal B) 16200 kcal C) 16.2 kcal D) 2.4 kcal
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Question

Quizplus · Accepted Answer

To convert water at 100°C to steam at 100°C, we use the latent heat of vaporization, which is 540 cal/g for water. For 30 g of water, the heat required is 30 g * 540 cal/g = 16200 cal = 16.2 kcal.

How Much Heat Is Necessary to Change 30 G of Water