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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope?

1
3
2

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Chemical Engineering Thermodynamics
The reaction A (l) R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The number of degrees of freedom are

2
1
3

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Chemical Engineering Thermodynamics
In jet refrigerators, the refrigerating fluid is practically always

Brine
Water
Freon
Ammonia

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Chemical Engineering Thermodynamics
Joule-Thomson Co-efficient at any point on the inversion curve is

∞
+ ve
-ve

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Chemical Engineering Thermodynamics
Charles' law for gases states that

V ∝ 1/P
V ∝ 1/T
V/T = Constant
PV/T = Constant

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Chemical Engineering Thermodynamics
Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is

300(32/7)
300(33/5)
300(35/7)
300(33/7)

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