During a reversible adiabatic compression of an ideal gas

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Thermodynamics · Thermodynamics

Problem

During a reversible adiabatic compression of an ideal gas, what are the signs of the work done by the gas (W)(W) and the change in its internal energy (ΔU)(\Delta U)? (a) W>0,  ΔU>0W>0,\;\Delta U>0 (b) W<0,  ΔU<0W<0,\;\Delta U<0 (c) W<0,  ΔU>0W<0,\;\Delta U>0 (d) W>0,  ΔU<0W>0,\;\Delta U<0

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