Question

The heat of vaporization of an unknown liquid is 1,340 Joules per gram. What is the minimum number of Joules needed to change 20.0 grams of the liquid to vapor at the boiling point?

Answer 1

The temperature of a boiling liquid remains constant until all of the liquid has been converted to a gas.For example, the amount of heat necessary to change one gram of water to steam at its boiling point at one atmosphere of pressure, the heat of vaporization of water, is approximately 540 calories.

Step-by-step explanation: