Chemical Engineering Thermodynamics MCQ Questions & Answers | Chemical Engineering Page-3 section-5

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21.
The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process.

A. Isobaric

B. Isothermal

C. Adiabatic

D. None of these

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22.
In the equation, PVⁿ = constant, if the value of n = 1, then it represents a reversible __________ process.

A. Isothermal

B. Isobaric

C. Polytropic

D. Adiabatic

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23.
The internal energy of an ideal gas does not change in a reversible __________ process.

A. Isothermal

B. Adiabatic

C. Isobaric

D. Isometric

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24.
In the equation PVⁿ = constant, if the value of $${\text{n}} = \gamma = \frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}},$$ then it represents a reversible __________ process.

A. Isothermal

B. Adiabatic

C. Isentropic

D. Polytropic

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25.
Pick out the wrong statement.

A. Activity co-efficient is dimensionless

B. In case of an ideal gas, the fagacity is equal to its pressure

C. In a mixture of ideal gases, the fugacity of a component is equal to the partial pressure of the component

D. The fugacity co-efficient is zero for an ideal gas

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26.
Pick out the wrong statement.

A. Cp of monoatomic gases such as metallic vapor is about 5 kcal/kg. atom

B. The heat capacity of solid inorganic substance is exactly equal to the heat capacity of the substance in the molten state

C. There is an increase in entropy, when a spontaneous change occurs in an isolated system

D. At absolute zero temperature, the heat capacity for many pure crystalline substances is zero

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27.
In the equation, PVⁿ = constant, if the value of n is in between 1 and y $$\left( {{\text{i}}{\text{.e}}{\text{., }}\frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}}} \right),$$ then it represents a reversible __________ process.

A. Isometric

B. Polytropic

C. Isentropic

D. Isobaric

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28.
In the equation, PVⁿ = constant, if the value of $${\text{n}} = \pm \infty ,$$ then it represents a reversible __________ process.

A. Adiabatic

B. Isometric

C. Isentropic

D. Isothermal

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29.
Which of the following is not correct for a reversible adiabatic process?

A. $${\text{T}}{{\text{V}}^{\gamma - 1}}$$ = constant

B. $${{\text{P}}^{1 - \gamma }}.{{\text{T}}^{\text{Y}}}$$ = constant

C. $${\text{P}}{{\text{V}}^\gamma }$$ = constant

D. None of these

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30.
Requisites of a reversible process is that the

A. System and surroundings pressure be equal

B. Friction in the system should be absent

C. System and surroundings temperature be equal

D. None of these

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Chemical Engineering Thermodynamics MCQ Questions & Answers | Chemical Engineering

21. The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process.

Answer & Solution

22. In the equation, PVn = constant, if the value of n = 1, then it represents a reversible __________ process.

Answer & Solution

23. The internal energy of an ideal gas does not change in a reversible __________ process.

Answer & Solution

24. In the equation PVn = constant, if the value of $${\text{n}} = \gamma = \frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}},$$ then it represents a reversible __________ process.

Answer & Solution

25. Pick out the wrong statement.

Answer & Solution

26. Pick out the wrong statement.

Answer & Solution

27. In the equation, PVn = constant, if the value of n is in between 1 and y $$\left( {{\text{i}}{\text{.e}}{\text{., }}\frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}}} \right),$$ then it represents a reversible __________ process.

Answer & Solution

28. In the equation, PVn = constant, if the value of $${\text{n}} = \pm \infty ,$$ then it represents a reversible __________ process.

Answer & Solution

29. Which of the following is not correct for a reversible adiabatic process?

Answer & Solution

30. Requisites of a reversible process is that the

Answer & Solution

Read More Section(Chemical Engineering Thermodynamics)

21.
The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process.

22.
In the equation, PVⁿ = constant, if the value of n = 1, then it represents a reversible __________ process.

23.
The internal energy of an ideal gas does not change in a reversible __________ process.

24.
In the equation PVⁿ = constant, if the value of $${\text{n}} = \gamma = \frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}},$$ then it represents a reversible __________ process.

25.
Pick out the wrong statement.

26.
Pick out the wrong statement.

27.
In the equation, PVⁿ = constant, if the value of n is in between 1 and y $$\left( {{\text{i}}{\text{.e}}{\text{., }}\frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}}} \right),$$ then it represents a reversible __________ process.

28.
In the equation, PVⁿ = constant, if the value of $${\text{n}} = \pm \infty ,$$ then it represents a reversible __________ process.

29.
Which of the following is not correct for a reversible adiabatic process?

30.
Requisites of a reversible process is that the