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Question 50

An ideal gas has undergone through the cyclic process as shown in the figure. Work done by the gas in the entire cycle is ______ $$\times 10^{-1}$$ J. (Take $$\pi = 3.14$$)

Correct Answer: 314

Solution

Using area of an ellipse on a $$V-P$$ diagram:

$$\vert{}W\vert{} = \pi a b = 3.14 \times 10^5 \times 10^{-4} = 31.4\text{ J}$$

$$W = 314 \times 10^{-1}\text{ J}$$

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