During a certain process

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Thermodynamics · Thermodynamics

Problem

During a certain process, the internal energy of a closed gas system does not change (ΔU=0\Delta U = 0), yet measurements show that Q≠0Q \neq 0. What must be the sign of WW? Explain your answer in one sentence.

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