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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzman's constant, T = absolute temperature)

3KT/m
√(3KT/m)
√(2KT/m)
√(6KT/m)

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Chemical Engineering Thermodynamics
Heat of reaction is

Independent of temperature changes
Dependent on temperature only
Dependent on pressure only
Dependent on both pressure and temperature

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Chemical Engineering Thermodynamics
As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is

Not changed
Decreasing
Data sufficient, can't be predicted
Increasing

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Chemical Engineering Thermodynamics
Absorption/evolution of heat during conversion of a substance from one allotropic form to another is termed as the heat of

Sublimation
Vaporisation
Transition
Fusion

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Chemical Engineering Thermodynamics
The internal energy of an ideal gas is a function of its __________ only.

Molecular size
Temperature
Volume
Pressure

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Chemical Engineering Thermodynamics
The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is

Less pronounced
Equal
More pronounced
Data insufficient, can't be predicted

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