A mass of 22 kg of helium at 381 kpa and -253oc is, Mechanical Engineering

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A mass of 22 kg of helium at 381 kpa and -253oc is

A mass of 2.2 kg of helium at 381 kPa and -253^oC is contained is a gas-tight frictionless piston-cylinder. The gas is expanded to a final pressure of 74 kPa in a poly tropic process where n = 1.667. Compute the work done (output positive) in the process.

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Mechanical Engineering: A mass of 22 kg of helium at 381 kpa and -253oc is

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