Exam-style question
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What is the significance of the area under a p-V diagram?.
- A.It represents the temperature change.
- B.It represents the work done by or on the gas.
- C.It represents the internal energy change.
- D.It represents the pressure change.
Model answer
What a good answer should say
- It represents the work done by or on the gas.
Explanation
Why this works
The area under a p-V diagram represents the work done by or on the gas during a thermodynamic process. This is a crucial concept in analyzing energy transfers in thermodynamic cycles.
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