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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Charles' law for gases states that

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

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Chemical Engineering Thermodynamics
If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them. This is __________ law.

Kirchoff's
Hess's
Lavoisier and Laplace
None of these

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Chemical Engineering Thermodynamics
The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is

Equal
More pronounced
Less pronounced
Data insufficient, can't be predicted

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Chemical Engineering Thermodynamics
The difference between isothermal compressibility and adiabatic compressibility for an ideal gas is

+ve
∞
-ve

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Chemical Engineering Thermodynamics
Free energy change of mixing two liquid substances is a function of the

Concentration of the constituents only
All of these
Temperature only
Quantities of the constituents only

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Chemical Engineering Thermodynamics
The change in Gibbs freee energy for vaporisation of a pure substance is

May be positive or negative
Zero
Positive
Negative

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