Chemical Engineering Thermodynamics MCQ Questions & Answers | Chemical Engineering Page-7 section-3

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61.
The value of C_p & C_v respectively for monoatomic gases in Kcal/kg Mole . °K are

A. 5 & 3

B. 3.987 & 1.987

C. 1.987 & 0.66

D. 0.66 & 1.987

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62.
Gibbs-Duhem equation

A. States that n₁dμ₁ + n₂dμ₂ + .... n_jdμ_j = 0, for a system of definite composition at constant temperature and pressure

B. Applies only to binary systems

C. Finds no application in gas-liquid equilibria involved in distillation

D. None of these

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63.
Pick out the correct statement.

A. The available energy in an isolated system for all irreversible (real) processes decreases

B. The efficiency of a Carnot engine increases, if the sink temperature is decreased

C. The reversible work for compression in non-flow process under isothermal condition is the change in Helmholtz free energy

D. All of the above

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64.
The unity of Planck's constant 'h' in the equation, E = hv is

A. J/s

B. J.S

C. J/kmol

D. Kmol/J

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65.
For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would

A. Shift the equilibrium towards right

B. Give higher yield of NH₃

C. Both A and B

D. Neither A nor B

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66.
If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) ⇋ C₃H₈(g) will be __________ Kcal.

A. -19.4

B. -30.2

C. 55.2

D. -55.2

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67.
Pick out the wrong statement.

A. A refriferation cycle violates the second law of thermadynamics

B. Refrigeration cycle is normally represented by a temperature vs. entropy plot

C. In a refrigerator, work required decreases as the temperature of the refrigerator and the temperature at which heat is rejected increases

D. One ton of refrigeration is equivalent to the rate of heat absorption equal to 3.53 kW

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68.
The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.

A. Temperature

B. Specific heat

C. Volume

D. Pressure

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69.
The expression, nC_v(T₂ - T₁), is for the __________ of an ideal gas.

A. Work done under adiabatic condition

B. Co-efficient of thermal expansion

C. Compressibility

D. None of these

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70.
The chemical potential of any constituent of an ideal solution depends on the __________ of the solution.

A. Temperature

B. Pressure

C. Composition

D. All of the above

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Chemical Engineering Thermodynamics MCQ Questions & Answers | Chemical Engineering

61. The value of Cp & Cv respectively for monoatomic gases in Kcal/kg Mole . °K are

Answer & Solution

62. Gibbs-Duhem equation

Answer & Solution

63. Pick out the correct statement.

Answer & Solution

64. The unity of Planck's constant 'h' in the equation, E = hv is

Answer & Solution

65. For the reversible exothermic reaction, N2 + 3H2 ⇋ 2NH3, increase of pressure would

Answer & Solution

66. If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) ⇋ C3H8(g) will be __________ Kcal.

Answer & Solution

67. Pick out the wrong statement.

Answer & Solution

68. The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.

Answer & Solution

69. The expression, nCv(T2 - T1), is for the __________ of an ideal gas.

Answer & Solution

70. The chemical potential of any constituent of an ideal solution depends on the __________ of the solution.

Answer & Solution

Read More Section(Chemical Engineering Thermodynamics)

61.
The value of C_p & C_v respectively for monoatomic gases in Kcal/kg Mole . °K are

62.
Gibbs-Duhem equation

63.
Pick out the correct statement.

64.
The unity of Planck's constant 'h' in the equation, E = hv is

65.
For the reversible exothermic reaction, N₂ + 3H₂ ⇋ 2NH₃, increase of pressure would

66.
If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) ⇋ C₃H₈(g) will be __________ Kcal.

67.
Pick out the wrong statement.

68.
The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.

69.
The expression, nC_v(T₂ - T₁), is for the __________ of an ideal gas.

70.
The chemical potential of any constituent of an ideal solution depends on the __________ of the solution.