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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Internal energy of an element at 1 atm and 25° C is __________ kcal/kg.mole.

273
0
None of these
25

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Chemical Engineering Thermodynamics
For an ideal gas, the chemical potential is given by

R dlnP
R dlnf
RT dlnP
None of these

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

3
2
1
0

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Chemical Engineering Thermodynamics
Which of the following identities can be most easily used to verify steam table data for superheated steam.

(∂V/∂T)P = -(∂S/∂P)T
(∂T/∂P)S = (∂V/∂S)P
(∂P/∂T)V = (∂S/∂V)T
(∂T/∂V)S = (∂p/∂S)V

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Chemical Engineering Thermodynamics
In the reaction, C + O₂ → CO₂ ; ΔH = - 94 kcal. What is the heat content (enthalpy)of O₂?

< - 94 kcal
> -94 kcal
-94 kcal
Zero

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Chemical Engineering Thermodynamics
Work done in case of free expansion is

Negative
None of these
Indeterminate
Zero

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