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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The first law of thermodynamics is a restatement of the law of conservation of

Momentum
Energy
Mass
None of these

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Chemical Engineering Thermodynamics
Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C.

300
540
327
270

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Chemical Engineering Thermodynamics
The unit of equilibrium constant of a chemical reaction is the same as that of

Molar concentration
Internal energy
None of these
Temperature

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Chemical Engineering Thermodynamics
For an ideal gas, the enthalpy

Decreases with rise in pressure
Is a path function
Increases with rise in pressure
Is independent of pressure

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Chemical Engineering Thermodynamics
Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T₂) is

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

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Chemical Engineering Thermodynamics
At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is

3.389
1.9398
1.572
4.238

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