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Chemical Engineering Thermodynamics

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

> 2
< 1
> 1
< 3

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Chemical Engineering Thermodynamics
The main feature of Carnot refrigeration cycle is that, it

Transfers heat from high temperature to low temperature
Accomplishes the reverse effect of the heat engine
Does not need the addition of external work for its functioning
None of these

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Chemical Engineering Thermodynamics
The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition.

Gibbs free energy
Enthalpy
Helmholtz free energy
Internal energy

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Chemical Engineering Thermodynamics
Melting of ice is an example of an __________ process.

Isothermal
Adiabatic
None of these
Isometric

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Chemical Engineering Thermodynamics
Internal energy of an element at 1 atm and 25° C is __________ kcal/kg.mole.

25
None of these
0
273

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Chemical Engineering Thermodynamics
As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T) approaches

Infinity
Unity
None of these
Zero

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