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Chemical Engineering - Chemical Engineering Thermodynamics

Exercise : Chemical Engineering Thermodynamics - Section 9
26.
Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be
0
1
2
3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)s and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv)
(∂P/∂V)S = (∂P/∂V)T
(∂P/∂V)S = [(∂P/∂V)T]Y
(∂P/∂V)S = y(∂P/∂V)T
(∂P/∂V)S = 1/y(∂P/∂V)T
Answer: Option
Explanation:
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28.
Gibbs-Helmholtz equation is
ΔF = ΔH - TΔT
d(E - TS) T, V < 0
Answer: Option
Explanation:
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29.
Pick out the wrong statement.
The net change in entropy in any reversible cycle is always zero.
The entropy of the system as a whole in an irreversible process increases.
The entropy of the universe tends to a maximum.
The entropy of a substance does not remain constant during a reversible adiabatie change.
Answer: Option
Explanation:
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30.
Fugacity co-efficient of a substance is the ratio of its fugacity to
mole fraction
activity
pressure
activity co-efficient
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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