200 J of work is expended in the adiabatic expansion of a gas. The change in the internal energy of the gas is

Name: 200 J of work is expended in the adiabatic expansion of a gas. The change in the internal energy of the gas is
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Quizplus · Accepted Answer

In an adiabatic process, there is no heat exchange with the surroundings. Therefore, the work done on or by the system directly changes its internal energy. If 200 J of work is done by the gas (expansion), its internal energy decreases by 200 J, hence -200 J.

200 J of Work Is Expended in the Adiabatic Expansion