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Chemical Engineering - Chemical Engineering Thermodynamics

Exercise : Chemical Engineering Thermodynamics - Section 8
1.
For the reversible exothermic reaction, N2 + 3H2 2NH3, increase of pressure would
shift the equilibrium towards right.
give higher yield of NH3.
both (b) and (c).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Which of the following has the minimum value of COP for a given refrigeration effect?
Reverse Carnot cycle.
Ordinary vapour-compression cycle.
Vapour-compression process with a reversible expansion engine.
Air refrigeration cycle.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
__________ decreases during adiabatic throttling of a perfect gas.
Entropy
Temperature
Enthalpy
Pressure
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Pick out the wrong statement.
Minimum number of degree of freedom of a system is zero.
Degree of freedom of a system containing a gaseous mixture of helium, carbon dioxide and hydrogen is 4.
For a two phase system in equilibrium made up of four non-reacting chemical species, the number of degrees of freedom is 4.
Enthalpy and internal energy change is zero during phase change processes like melting, vaporisation and sublimation.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will
increase
decrease
remain unchanged
first fall and then rise.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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