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Question

One mole of an ideal monoatomic gas is taken round the cyclic process ABCA as shown in figure. Calculate the maximum temperature attained by the gas during the cycle.
214591_ed06028ecb5f4c93a41a86150fcba14d.png

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Solution

The maximum temperature attained in cycle is along BC curve
Explanation of BC
P=[2P0V0]V+5P0(1)
Where 2P0V0 id slope of BC 5P0 is intercept yaxis
Putting P=RTV in equation (1)
RT=2P0V0V2+5P0V(2)
For maximum dtdv=0
0=2P0V0×2V+5P0
V=5P04(3)
Putting equation (3) in equation (2)
RTmax=2P0V0+[5V04]2+5P0[5V04]
=2P0V0×2516+25P0V04=25P0V08
Tmax=258P0V0R
Hence, the answer is 258P0V0R.

888826_214606_ans_09958b47edca473989f623c50b2e7a8a.png

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