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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is

30554
4988.4
4364.9
10373

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Chemical Engineering Thermodynamics
For an ideal gas, the internal energy depends upon its __________ only.

Molecular size
Pressure
Volume
Temperature

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Chemical Engineering Thermodynamics
During Joule-Thomson expansion of gases

Temperature remains constant
Entropy remains constant
None of these
Enthalpy remains constant

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Chemical Engineering Thermodynamics
When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs. This phenomenon is related to the

Joule-Thomson effect
Gibbs-Helmholtz equation
Third law of thermodynamics
Gibbs-Duhem equation

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Chemical Engineering Thermodynamics
The value of Cp & Cv respectively for monoatomic gases in Kcal/kg Mole . °K are

5 & 3
0.66 & 1.987
1.987 & 0.66
3.987 & 1.987

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Chemical Engineering Thermodynamics
The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

RT lnK
-R lnK
-RT lnK
T lnK

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MORE MCQ ON Chemical Engineering Thermodynamics

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