The work done on the surroundings by the expansion of a gas is w = -PDV.

Name: The work done on the surroundings by the expansion of a gas is w = -PDV.
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Question

Quizplus · Accepted Answer

This is the correct formula for the work done by an expanding gas on the surroundings in terms of pressure (P) and change in volume (DV). The negative sign indicates that the work is done on the surroundings rather than by the surroundings on the gas.

The Work Done on the Surroundings by the Expansion of a Gas