Question:
In an isothermal process
In an isothermal process
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Isothermal means constant temperature. Isobaric means constant pressure, and isochoric means constant volume.
Updated On: May 7, 2026
- Internal energy of the system never remains constant
- Total heat energy of the system remains constant
- Volume of the system remains constant
- Temperature of the system remains constant
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The Correct Option is D
Solution and Explanation
Concept:
The word isothermal means:
\[
\text{iso}=\text{same}, \qquad \text{thermal}=\text{temperature}
\]
Step 1: In an isothermal process, the temperature remains constant throughout the process. \[ T=\text{constant} \]
Step 2: For an ideal gas, internal energy depends only on temperature. So, in an isothermal process for an ideal gas, internal energy also remains constant.
Step 3: But the defining condition of an isothermal process is: \[ \boxed{\text{Temperature remains constant}} \] Therefore, the correct answer is: \[ \boxed{\text{Temperature of the system remains constant}} \]
Step 1: In an isothermal process, the temperature remains constant throughout the process. \[ T=\text{constant} \]
Step 2: For an ideal gas, internal energy depends only on temperature. So, in an isothermal process for an ideal gas, internal energy also remains constant.
Step 3: But the defining condition of an isothermal process is: \[ \boxed{\text{Temperature remains constant}} \] Therefore, the correct answer is: \[ \boxed{\text{Temperature of the system remains constant}} \]
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