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Steam, initially at 700 lbf/in.2, 550°F undergoes a polytropic process in a piston–cylinder assembly to a...

Steam, initially at 700 lbf/in.2, 550°F undergoes a polytropic process in a piston–cylinder assembly to a final pressure of 2200 lbf/in.2 Kinetic and potential energy effects are negligible.

Determine the heat transfer, in Btu per lb of steam, for a polytropic exponent of 1.4,
(a) using data from the steam tables.
(b) assuming ideal gas behavior.

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