Heat and Thermal ExpansionHard

Question

The internal energy of as gas is given U = 5 + 2PV. It expands from V0 to 2V0 against a constant pressure P0. The heat absorbed by the gas in the process is : -

Options

A.- 3P0V0
B.3P0V0
C.2P0V0
D.P0V0

Solution

ᐃU = 2P0ᐃV & W = P0ᐃV
So Q = W + ᐃU = 3P0ᐃV = 3P0V0

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