Engineering Board Exam Reviewer · Thermodynamics · easy

The heat required to change the phase of a substance without a change in temperature is called:

1. Latent heat
2. Sensible heat
3. Specific heat
4. Heat of combustion

Answer

A. Latent heat

Solution

Latent heat (of fusion, vaporization, sublimation) changes phase at constant temperature and pressure.

More Thermodynamics questions

1. The direct change of phase from solid to vapor is called:
2. The state at which saturated liquid and saturated vapor states become identical is called the:
3. On the Fahrenheit scale, the normal freezing and boiling points of water are:
4. At what temperature do the Celsius and Fahrenheit scales read the same value?
5. The instrument used to measure atmospheric pressure is the:
6. Standard atmospheric pressure is equal to:
7. One calorie (cal) is approximately equal to:
8. One British thermal unit (BTU) is approximately equal to:
9. The SI unit of energy is the:
10. Enthalpy is defined as:

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