To turn 50 grams of boiling water to steam requires
A) 540 calories.
B) 50 calories.
C) 500 calories
D) more calories than are required to bring 50 grams of ice at absolute zero to the boiling point.
E) None of the above choices are correct.

Question

Quizplus · Accepted Answer

The latent heat of vaporization for water is 540 calories per gram, so turning 50 grams of boiling water to steam requires 50 x 540 = 27,000 calories, which is more than the energy needed to bring 50 grams of ice from absolute zero to the boiling point.

To Turn 50 Grams of Boiling Water to Steam Requires