Exam-style question
Try this first
In a thermodynamic process, what does compression work typically result in?.
- A.Energy being added to the system.
- B.Energy being removed from the system.
- C.No change in internal energy.
- D.Heat being transferred to the surroundings.
Model answer
What a good answer should say
- Energy being added to the system.
Explanation
Why this works
Compression work is defined as the work done on a gas when it is compressed, which typically results in energy being added to the system. This is because the external pressure does work on the gas, increasing its internal energy.
The key difference here is that while expansion work results in energy being transferred out of the system, compression work leads to an increase in internal energy. This applies in scenarios such as piston engines where the gas is compressed.
Thus, the correct option is that compression work typically results in energy being added to the system.
Common mistake
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