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Chemical Engineering Thermodynamics

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

273°C
100°C
0°C
-273°C

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Chemical Engineering Thermodynamics
Co-efficient of performance for a reversed Carnot cycle working between temperatures T₁ and T₂ (T₁ > T₂) is

T₂/(T₁ - T₂)
(T₁ - T₂)/T₂
T₁/(T₁ - T₂)
(T₁ - T₂)/T₁

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Chemical Engineering Thermodynamics
Claude's liquefaction process employs the cooling of gases by

None of these
Expansion in an engine
Following a constant pressure cycle
Throttling

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Chemical Engineering Thermodynamics
If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase are known, then the latent heat of fusion can be calculated by the

Clayperon-Claussius equation
Maxwell's equation
Nernst Heat Theorem
Van Laar equation

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Chemical Engineering Thermodynamics
The principle applied in liquefaction of gases is

Both A and B
Joule-Thomson effect
Neither A nor B
Adiabatic expansion

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Chemical Engineering Thermodynamics
In a reversible process

Tds = dE + dW
Tds - dW + dE >0
DW - dE = Tds
DE - dW = Tds

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