If w is negative, what happened to the volume?

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Prepare for the DAT Bootcamp General Chemistry Test. Study with comprehensive questions, complete with hints and explanations. Get ready to ace your exam!

Multiple Choice

If w is negative, what happened to the volume?

Explanation:
Negative work means the system is doing work on its surroundings, which happens when it expands. In PV work, w = -PΔV. With external pressure P > 0, a negative w requires ΔV > 0, so the volume increases. Therefore, the volume has increased. The note that the system is doing work on the surroundings is a consequence of expansion, but the question is about the volume change, so describing the volume as having increased is the direct answer.

Negative work means the system is doing work on its surroundings, which happens when it expands. In PV work, w = -PΔV. With external pressure P > 0, a negative w requires ΔV > 0, so the volume increases. Therefore, the volume has increased. The note that the system is doing work on the surroundings is a consequence of expansion, but the question is about the volume change, so describing the volume as having increased is the direct answer.

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