In an isochoric process, what happens to the internal energy of an ideal gas when heat is added?
Correct Answer: Internal energy increases.
- Step 1: Understand what an isochoric process is. It means the volume of the gas does not change.
- Step 2: Know that internal energy is the energy contained within the gas due to its temperature and molecular motion.
- Step 3: Recognize that when heat is added to the gas in an isochoric process, the gas cannot expand because the volume is constant.
- Step 4: Since the volume is constant, all the heat added goes into increasing the internal energy of the gas.
- Step 5: Conclude that in an isochoric process, adding heat increases the internal energy of the gas.
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