First slide

Work done by gas

Question

A gas is taken through the cycle A ➔ B ➔ C ➔ A, as shown, what is the net work done by the gas?

Easy

A

- 2000 J
B

2000 J
C

1000 J
D

Zero

Solution

Net Work done =Area of triangle ABC
$= \frac{1}{2} \times [(7 - 2) \times 10^{- 3}] [(6 - 2) \times 10^{5}] = 1000 J$

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