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A 100 liter air tank housed in a gas station ruptured suddenly and air originally at 5atm escaped to the surroundings at 1atm and 25°C. Find ?S of air, had it been let out slowly in a reversible manner. Find ?S of air, when it is let out abruptly. Find the amount of entropy generated SG and amount of work lost Wlost. Assume ideal gas.

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