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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Work done may be calculated by the expression ∫p dA for __________ processes.

Both A and B
Non-flow reversible
Adiabatic
Neither A nor B

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Chemical Engineering Thermodynamics
In the equation PVn = constant, if the value of n = y = Cp/Cv, then it represents a reversible __________ process.

Isothermal
Isentropic
Polytropic
Adiabatic

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Chemical Engineering Thermodynamics
Specific heat of a gas for a reversible adiabatic process is

None of these
Negative
Zero
Infinity

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Chemical Engineering Thermodynamics
Which of the following is not a reversible process ?

Atmospheric pressure vaporisation of water at 100°C
None of these
Expansion of an ideal gas against constant pressure
Solution of NaCl in water at 50°C

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Chemical Engineering Thermodynamics
The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance.

Cooling
Simultaneous pressure & temperature change
Both B and C
Heating

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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
Same
Doubled
One fourth of its original value

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