What happens to the internal energy of an ideal gas during an isochoric process?

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Question: What happens to the internal energy of an ideal gas during an isochoric process?

Options:

Correct Answer: It increases

Solution:

In an isochoric process, the volume remains constant, and any heat added to the system increases the internal energy of the gas.

What happens to the internal energy of an ideal gas during an isochoric process?

What happens to the internal energy of an ideal gas during an isochoric process?

Step 1: Understand what an isochoric process is. It is a process where the volume of the gas does not change.
Step 2: Know that internal energy is the total energy contained within the gas, which depends on temperature.
Step 3: Realize that when heat is added to the gas during an isochoric process, the gas cannot expand because the volume is constant.
Step 4: Since the gas cannot do work on its surroundings (because the volume is constant), all the heat added goes into increasing the internal energy.
Step 5: Conclude that in an isochoric process, the internal energy of the gas increases when heat is added.

Isochoric Process – An isochoric process is a thermodynamic process in which the volume of the system remains constant.
Internal Energy – The internal energy of an ideal gas is a function of temperature, and in an isochoric process, any heat added increases this energy.
First Law of Thermodynamics – The first law states that the change in internal energy is equal to the heat added to the system minus the work done by the system.