Estimate as closely as possible the entropy change of the

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Consider a cylinder containing 4 moles of compressed argon to 10 bar and 298 K. The cylinder is housed in a big lab maintained at 1 bar and 298 K. The valve develops a leak and Ar escapes to the atmosphere until the pressure and temperature equilibrate. After a sufficient amount of time, the argon in the room reaches its background mole fraction of 0.01. Estimate, as closely as possible, the entropy change of the universe. You may assume that argon behaves as an ideal gas. Do you think this expansion process as a whole can be treated as reversible?

Reference no: EM13607062

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