Chemical Engineering Thermodynamics MCQ Questions & Answers | Chemical Engineering Page-8 section-4

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71.
Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas)

A. T

B. $$\sqrt {\text{T}} $$

C. T²

D. $$\frac{1}{{\sqrt {\text{T}} }}$$

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72.
If two pure liquid constituents are mixed in any proportion to give an ideal solution, there is no change in

A. Volume

B. Enthalpy

C. Both A & B

D. Neither A nor B

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73.
Joule-Thomson co-efficient depends on the

A. Pressure

B. Temperature

C. Both A & B

D. Neither A nor B

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74.
In Joule-Thomson porous plug experiment, the

A. Enthalpy does not remain constant

B. Entire apparatus is exposed to surroundings

C. Temperature remains constant

D. None of these

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75.
In case of steady flow compression polytropic process (PVⁿ = constant), the work done on air is the lowest, when

A. N = y = 1.4

B. N = 0

C. N = 1

D. N = 1.66

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76.
Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the

A. Calorific value

B. Heat of reaction

C. Heat of combustion

D. Heat of formation

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77.
Pick out the correct statement:

A. In an isothermal system, irreversible work is more than reversible work

B. Under reversible conditions, the adiabatic work is less than isothermal work

C. Heat, work, enthalpy and entropy are all 'state functions'

D. Matter and energy can not be exchanged with the surroundings in a closed system

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78.
For a spontaneous process, free energy

A. Is zero

B. Increases

C. Decreases whereas the entropy increases

D. And entropy both decrease

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79.
A large iceberg melts at the base, but not at the top, because of the reason that

A. Ice at the base contains impurities which lowers its melting point

B. Due to the high pressure at the base, its melting point reduces

C. The iceberg remains in a warmer condition at the base

D. All of the above

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80.
High __________ is an undesirable property for a good refrigerant.

A. Specific heat

B. Latent heat of vaporisation

C. Viscosity

D. Specific vapor volume

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Chemical Engineering Thermodynamics MCQ Questions & Answers | Chemical Engineering

71. Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas)

Answer & Solution

72. If two pure liquid constituents are mixed in any proportion to give an ideal solution, there is no change in

Answer & Solution

73. Joule-Thomson co-efficient depends on the

Answer & Solution

74. In Joule-Thomson porous plug experiment, the

Answer & Solution

75. In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when

Answer & Solution

76. Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the

Answer & Solution

77. Pick out the correct statement:

Answer & Solution

78. For a spontaneous process, free energy

Answer & Solution

79. A large iceberg melts at the base, but not at the top, because of the reason that

Answer & Solution

80. High __________ is an undesirable property for a good refrigerant.

Answer & Solution

Read More Section(Chemical Engineering Thermodynamics)

71.
Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas)

72.
If two pure liquid constituents are mixed in any proportion to give an ideal solution, there is no change in

73.
Joule-Thomson co-efficient depends on the

74.
In Joule-Thomson porous plug experiment, the

75.
In case of steady flow compression polytropic process (PVⁿ = constant), the work done on air is the lowest, when

76.
Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the

77.
Pick out the correct statement:

78.
For a spontaneous process, free energy

79.
A large iceberg melts at the base, but not at the top, because of the reason that

80.
High __________ is an undesirable property for a good refrigerant.