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Chemical Engineering - Chemical Engineering Thermodynamics

Exercise : Chemical Engineering Thermodynamics - Section 8
46.
The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for
expansion of a real gas.
reversible isothermal volume change.
heating of an ideal gas.
cooling of a real gas.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
With increase in temperature, the internal energy of a substance
increases
decreases
remains unchanged
may increase or decrease; depends on the substance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions.
The amount of work needed is path dependent.
Work alone can not bring out such a change of state.
The amount of work needed is independent of path.
More information is needed to conclude anything about the path dependence or otherwise of the work needed.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
For a constant pressure reversible process, the enthalpy change (ΔH) of the system is
Cv.dT
Cp.dT
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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