NEET Physics Thermodynamics Questions Solved


For one complete cycle of a thermodynamic process on a gas as shown in the P-V diagram, which of following is correct ?

(1) ΔEint=0,Q<0

(2) ΔEint=0,Q>0

(3) ΔEint>0,Q<0

(4) ΔEint<0,Q>​ 0

(1) ΔEint=0, for a complete cycle and for given cycle work done is negative, so from first law of thermodynamics Q will be negative i.e. Q < 0.

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