THPT Physics Practice Questions - High School Graduation Examination - Physics (Kỳ Thi Tốt Nghiệp THPT - Môn Vật Lí) Exam

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According to the first law of thermodynamics as written in the Grade 12 curriculum, ΔU = A + Q, what does A represent when a gas is compressed by an external force?

The work done on the gas by the external force, taken as positive The heat radiated by the gas, taken as negative The change in temperature of the gas The pressure exerted on the gas

Correct Answer:

The work done on the gas by the external force, taken as positive

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