Question 956: Thermodynamics & KTG

Question

A thermodynamic system undergoes cyclic process ABCDA as shown in figure. The work done by the system in the cycle is

Accepted Answer

In a cyclic process work done is equal to the area under the cycle and is positive if the cycle is clockwise and negative if anticlockwise. As is clear from figure,
$${W_{AEDA}} =  + area\,of\,\Delta AED =  + {1 \over 2}{P_0}{V_0}$$
$${W_{BCEB}} =  - area\,of\Delta BCE =  - {1 \over 2}{P_0}{V_0}$$
The net work done by the system is
$${W_{net}} = {W_{AEDA}} + {W_{BCEB}}$$
$$ =  + {1 \over 2}{P_0}{V_0} - {1 \over 2}{P_0}{V_0} = 0$$

Answer

P
0
V
0

Answer

2P
0
V
0

Answer

$${{{P_0}{V_0}} \over 2}$$

Answer

zero

Thermodynamics & KTG

A thermodynamic system undergoes cyclic process ABCDA as shown in figure. The work done by the system in the cycle is

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