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Question

In a thermally isolated system. Two boxes filled with an ideal gas are connected by a valve. When the valve is in closed position, states of the box 1 and 2, respectively,are (1 atm, ViT) and (0.5 atm, 4V, T). When the valve is opened, the final pressure of the system is approximately.

A
0.5 atm
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B
0.6 atm
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C
0.75 atm
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D
1.0 atm
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Solution

The correct option is B 0.6 atm
vi=vl
52×1×V+52×0.5×4v=52P5V
P=35=0.6
1313616_317133_ans_b2d4e033130147ad993f7efc185ad154.png

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