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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is

1000
349
667
651

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

Internal energy
Entropy
Gibbs free energy
All 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.

Internal energy
Helmholtz free energy
Gibbs free energy
Enthalpy

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Chemical Engineering Thermodynamics
In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible __________ process.

Polytropic
Isentropic
Isometric
Isobaric

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Chemical Engineering Thermodynamics
Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will

Increase
Decrease
First fall and then rise
Remain unchanged

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Chemical Engineering Thermodynamics
(∂E/∂T)V is the mathematical expression for

Enthalpy change
None of these
CV
Free energy change

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