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Chemical Engineering Thermodynamics

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

Carnot
Air
Absorption
Vapour-ejection

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Chemical Engineering Thermodynamics
During adiabatic expansion of gas

Temperature remains constant
Pressure remains constant
None of these
Pressure is increased

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Chemical Engineering Thermodynamics
Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as

P = F - C - 2
C = P - F + 2
P + F - C = 2
F = C - P - 2

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Chemical Engineering Thermodynamics
The equation, PV = nRT, is best obeyed by gases at

None of these
High pressure & low temperature
Low pressure & low temperature
Low pressure & high temperature

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Chemical Engineering Thermodynamics
If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) ⇋ C₃H₈(g) will be __________ Kcal.

-19.4
-30.2
55.2
-55.2

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Chemical Engineering Thermodynamics
Rotary lime kiln is an example of a/an __________ system.

Non-thermodynamic
Isolated
Closed
Open

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