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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The gas law (PV = RT) is true for an __________ change.

Isothermal
Adiabatic
Neither A nor B
Both A & B

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Chemical Engineering Thermodynamics
Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance is doubled, then the value of the equilibrium constant will be

Halved
Doubled
One fourth of its original value
Same

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Chemical Engineering Thermodynamics
Joule-Thomson co-efficient for a perfect gas is

Zero
Positive
Negative
None of these

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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

Same
More
Data insufficient to predict
Less

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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

1.572
3.389
1.9398
4.238

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Chemical Engineering Thermodynamics
Enthalpy 'H' is defined as

H - E = PV
H = F - TS
None of these
H = E - PV

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