Air in the amount of 2 lbm is contained in a wellinsulated, rigid vessel equipped with a stirring paddle wheel. The initial state of this air is 30 psia and 60°F. How much work, in Btu, must be transferred to the air with the paddle wheel to raise the air pressure to 40 psia? Also, what is the final temperature of air?

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Air in the amount of 2 lbm is contained in a wellinsulated,
rigid vessel equipped with a stirring paddle wheel.
The initial state of this air is 30 psia and 60°F. How much
work, in Btu, must be transferred to the air with the paddle
wheel to raise the air pressure to 40 psia? Also, what is the
final temperature of air?

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