Exam-style question
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What is the primary characteristic of an isothermal process?.
- A.The temperature remains constant throughout the process.
- B.The internal energy of the system increases.
- C.Heat is added without doing work.
- D.The pressure of the gas decreases.
Model answer
What a good answer should say
- The temperature remains constant throughout the process.
Explanation
Why this works
In an isothermal process, the temperature of the system does not change, meaning that any heat added to the system is used to do work, keeping the internal energy constant.
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