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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when

N = 0
N = 1
N = 1.66
N = y = 1.4

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Chemical Engineering Thermodynamics
For an irreversible process involving only pressure-volume work

(dF)T, p = 0
(dA)T, v >0
(dF)T, p
(dF)T, p > 0

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Chemical Engineering Thermodynamics
In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

Decreased COP
Enhanced COP
No change in the value of COP
Increased or decreased COP ; depending upon the type of refrigerant

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Chemical Engineering Thermodynamics
The standard Gibbs free energy change of a reaction depends on the equilibrium

Pressure
Temperature
All of these
Composition

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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
Isometric
Isentropic
Isobaric

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Chemical Engineering Thermodynamics
In which of the following reaction equilibria, the value of equilibrium constant Kp will be more than is Kc?

None of these
2SO₂ + O₂ ⇋ 2SO₃
N₂O₄ ⇋ 2NO₂
2HI ⇋ H₂ + I₂

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