NEET Physics Thermodynamics Questions Solved


A thermodynamic system is taken through the cycle PQRSP process. The net work done by the system is -

(1) 20 J

(2) – 20 J

(3) 400 J

(4) – 374 J

(2) Work done by the system = Area of shaded portion on P-V diagram

=(300100)106×(200100)×103=20J

Since sense is anti-clockwise, work done is negative

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