Chemical Engineering > GATE 2024 > Thermodynamics
Ethylene obeys the truncated virial equation-of-state:
(PV) / (RT) = 1 + (BP) / (RT)
where P is the pressure, V is the molar volume, T is the absolute temperature, and B is the second virial coefficient. The universal gas constant R = 83.14 bar cm3 mol−1K−1. At 340 K, the slope of the compressibility factor vs. pressure curve is −3.538 × 10−3 bar−1. Let GR denote the molar residual Gibbs free energy. At these conditions, the value of (∂GR/∂P)T, in cm3 mol−1, rounded off to 1 decimal place, is _________
(PV) / (RT) = 1 + (BP) / (RT)
where P is the pressure, V is the molar volume, T is the absolute temperature, and B is the second virial coefficient. The universal gas constant R = 83.14 bar cm3 mol−1K−1. At 340 K, the slope of the compressibility factor vs. pressure curve is −3.538 × 10−3 bar−1. Let GR denote the molar residual Gibbs free energy. At these conditions, the value of (∂GR/∂P)T, in cm3 mol−1, rounded off to 1 decimal place, is _________
Correct : 369.8
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