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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
(∂H/∂T)p is the mathematical expression for

None of these
Entropy change
CV
Gibbs free energy

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Chemical Engineering Thermodynamics
A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be __________ c.c.

2.73
283
28.3
273

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Chemical Engineering Thermodynamics
For a constant volume process

dE = CpdT
dQ = dE + pdV
dW = pdV
dE = CvdT

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Chemical Engineering Thermodynamics
When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs. This phenomenon is related to the

Joule-Thomson effect
Gibbs-Helmholtz equation
Gibbs-Duhem equation
Third law of thermodynamics

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Chemical Engineering Thermodynamics
At the critical point of a substance

The surface tension vanishes
There is no distinction between liquid and vapour phases
Liquid and vapour have the same density
All of these

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Chemical Engineering Thermodynamics
Pick out the correct equation relating 'F' and 'A'.

F = E + A
F = A + TS
F = A - TS
F = A + PV

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