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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
In case of an __________ process, the temperature of the system increases.

Adiabatic compression
Isothermal expansion
Adiabatic expansion
Isothermal compression

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Chemical Engineering Thermodynamics
__________ does not change during phase transformation processes like sublimation, melting & vaporisation.

Internal energy
Gibbs free energy
All of these
Entropy

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Chemical Engineering Thermodynamics
__________ increases with increase in pressure.

Neither A nor B
The melting point of wax
Both A and B
The boiling point of a liquid

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Chemical Engineering Thermodynamics
The fusion of a crystalline solid at its melting point to form a liquid at the same temperature is accompanied by

Decrease of entropy
Decrease in enthalpy corresponding to evolution of heat
No change in enthalpy
Increase in enthalpy corresponding to absorption of heat

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Chemical Engineering Thermodynamics
Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

Always greater than one
Both B & C
Same at the same reduced temperature
Same at the same reduced pressure

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Chemical Engineering Thermodynamics
The expression for entropy change given by, ΔS = nR ln (V₂/V₁) + nCv ln (T₂/T₁) is valid for

Simultaneous heating and expansion of an ideal gas
Cooling of a substance
Heating of a substance
Reversible isothermal volume change

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