TRG-TRC003-EN 39
Questions for Period 1
1Heat intensity is measured in terms of its __________?
2Heat quantity is measured with units of __________?
3Heat always flows from a substance of ________ (higher, lower) temperature
to a substance of ________ (higher, lower) temperature.
4What are the three basic processes by which heat is transferred from one
substance to another?
Questions for Period 2
5Which process requires more heat energy: raising the temperature of a
container of water from 50°F [10°C] to 200 °F [93.3°C] or boiling the same
quantity of 212°F [100°C] water to 212 °F [100°C] steam?
6What type of heat energy, when added to or removed from a substance,
results in a measurable change in temperature?
7What type of heat energy, when added to or removed from a substance,
results in a change of state of the substance—from a liquid to a vapor or
vice-versa?
Questions for Period 3
8Identify the four major components of the vapor-compression refrigeration
cycle labeled in Figure 58.
9What is the state of the refrigerant when it enters the evaporator?
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Figure 58
Quiz