Exam-style question
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In a p-V diagram, what does a horizontal line indicate about the gas process?.
- A.Isothermal process
- B.Adiabatic process
- C.Constant volume process
- D.Constant pressure process
Model answer
What a good answer should say
- Constant pressure process
Explanation
Why this works
A horizontal line on a p-V diagram indicates that the pressure remains constant while the volume changes. This is characteristic of an isobaric process, where the gas expands or compresses at a constant pressure.
Recognizing this allows us to analyze the behavior of gases under different thermodynamic conditions effectively.
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