How long would it take for 1.50 mol of water at 100.0? c to be converted completely into steam if heat were added at a constant rate of 25.0 j/s?

Question

Chemistry

Kadin Hardy

8 July, 17:51

How long would it take for 1.50 mol of water at 100.0? c to be converted completely into steam if heat were added at a constant rate of 25.0 j/s?

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Willow Mckay · Answer 1

The molar latent heat of vaporization of a substance is the amount of energy necessary to transform one mole of a substance from a liquid to a gas at constant temperature. In the case of water, this is 40,650 J/mol. Assuming no energy is lost, the total amount of energy required will be:

Q = 1.5 * 40,650

Q = 60,975 J

The time taken will be:

60,975/25 s

The vaporization will take 2,439 seconds.