A thermodynamic system is taken through cycle PQRSP process. net work done by system is...... J

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11.Thermodynamics

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A thermodynamic system is taken through the cycle $PQRSP$ process. the net work done by the system is...... $J$

A

$20$

B

$-20$

C

$400$

D

$-374$

Solution

$\mathrm{W}=$ Area of rectangle

$=-100 \times 10^{3} \times 200 \times 10^{-6}$

$=-20 \mathrm{J}$

$-$ve sign in taken because the cycle is anticlockwise.

Standard 11

Physics

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