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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The number of degree of freedom for an azeotropic mixture of ethanol and water in vapour-liquid equilibrium, is

2
1
0
3

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Chemical Engineering Thermodynamics
Van Laar equation deals with the activity co-efficients in

None of these
Binary solutions
Azeotropic mixture only
Ternary solutions

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Chemical Engineering Thermodynamics
The compressibility factor of a gas is given by (where, V₁ = actual volume of the gas V₂ = gas volume predicted by ideal gas law )

V₁/V₂
V₁.V₂
V₁-V₂
V₂/V₁

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Chemical Engineering Thermodynamics
The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

Less
Data insufficient to predict
More
Same

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Chemical Engineering Thermodynamics
In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about __________ percent.

0.25
1
0.5
0.75

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Chemical Engineering Thermodynamics
Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

Same at the same reduced pressure
Always greater than one
Same at the same reduced temperature
Both B & C

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