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2. NH3, initially at 25°C and 1 bar, is heated at constant pressure until the volume increases 4 times. The heat capacity of

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Answer #1

Part a).

V1/T1 = V2/T2

i.e. T2 = (V2/V1)*T1 = 4*(25+273) K = 1192 K or 919 oC

P1V1 = P2V2

i.e. P2 = (V1/V2)*P1 = 1/4 * 1 atm = 0.25 atm

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