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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Which of the following exemplifies an adiabatic process?

Melting of ice
Condensation of alcohol vapor
Sudden bursting of a cycle tube
Evaporation of water

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Chemical Engineering Thermodynamics
The thermodynamic law, PVy = constant, is not applicable in case of

Ideal compression of air
Free expansion of an ideal gas
Adiabatic compression of a perfect gas
Adiabatic expansion of steam in a turbine

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Chemical Engineering Thermodynamics
Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants)

(atm)Δx2, when Δx > 0
Dimensionless, when Δx = 0
(atm)Δx, when Δx is negative
(atm)Δx, when Δx is positive

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Chemical Engineering Thermodynamics
The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is

(∂T/∂V)S = -(∂P/∂S)V
(∂S/∂P)T = -(∂V/∂T)P
(∂V/∂S)P = (∂T/∂P)S
(∂S/∂V)T = (∂P/∂T)V

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Chemical Engineering Thermodynamics
Second law of thermodynamics is concerned with the

Amount of energy transferred
Non-cyclic processes only
Irreversible processes only
Direction of energy transfer

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Chemical Engineering Thermodynamics
The kinetic energy of gas molecule is zero at

0°C
273°C
-273°C
100°C

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