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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The number of degrees of freedom for an azeotropic mixture in a two component vapour-liquid equilibria is/are

Three
One
Two
Zero

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Chemical Engineering Thermodynamics
The accentric factor of a materical, 'ω', is defined as ω = -log10(Prsat)Tr⁻¹ = 0.7, where, Prsat = reduced vapor pressure, Tr = reduced temperature. The value of accentric factor is always

> 1
> 2
< 1
< 3

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Chemical Engineering Thermodynamics
What is the ratio of adiabatic compressibility to isothermal compressibility?

> 1
< 1
1
>> 1

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Chemical Engineering Thermodynamics
Cp of a gas at its critical temperature and pressure

Becomes zero
Equals 0.24 kcal/kmol °K
Becomes infinity
Equals 1 kcal/kmol °K

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Chemical Engineering Thermodynamics
The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

RT lnK
-R lnK
T lnK
-RT lnK

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Chemical Engineering Thermodynamics
Cp - Cv = R is valid for __________ gases.

Ideal
Very high pressure
All
Very low temperature

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