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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Domestic refrigerator usually works on the __________ refrigeration cycle.

Air
Absorption
Carnot
Vapour-ejection

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Chemical Engineering Thermodynamics
Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?

DQ = CvdT + PdV
DE = Tds - PdV
DQ = CpdT + Vdp
Tds = dE - PdV

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Chemical Engineering Thermodynamics
All gases above its inversion temperature, in a throttling process will show

Either A or C
A cooling effect
A heating effect
No change in temperature

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Chemical Engineering Thermodynamics
In the equation PVn = constant, if the value of n = y = Cp/Cv, then it represents a reversible __________ process.

Polytropic
Isentropic
Adiabatic
Isothermal

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Chemical Engineering Thermodynamics
Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole . °K

100
∞
50

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Chemical Engineering Thermodynamics
A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the __________ mean of P₁ and P₂.(where, P₁ and P₂ are initial and final pressures respectively)

Logarithmic
Harmonic
Geometric
Arithmetic

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