Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is

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Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is

C. Zero

Correct Answer :

C. Zero

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What is the ratio of adiabatic compressibility to isothermal compressibility?

A. 1

B. < 1

C. > 1

D. >> 1

Discuss this answer

For a single component two phase mixture, the number of independent variable properties are

A. Two

B. One

C. Zero

D. Three

Discuss this answer

Degrees of freedom at triple point will be

A. 0

B. 1

C. 2

D. 3

Discuss this answer

For an ideal solution, the value of activity co-efficient is

A. 0

B. 1

C. < 1

D. > 1

Discuss this answer

Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be

A. 0

B. 1

C. 2

D. 3

Discuss this answer

The internal energy of an incompressible fluid depends upon its

Discuss this answer

High __________ is an undesirable property for a good refrigerant.

Discuss this answer

Which is not a refrigerant?

A. SO₂

B. NH₃

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The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances. This is the

Discuss this answer

Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of

A. Fusion

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The standard state of a gas (at a given temperature) is the state in which fugacity is equal to

A. Unity

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Gibbs-Duhem equation

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The kinetic energy of gas molecule is zero at

A. 0°C

B. 273°C

C. 100°C

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Compressibility factor of a gas is

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The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

Discuss this answer

At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is

A. Zero

B. One

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Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.

A. Polar

Discuss this answer

As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches

A. Zero

B. Unity

Discuss this answer

The gas law (PV = RT) is true for an __________ change.

Discuss this answer

Work done may be calculated by the expression ∫ p dA for __________ processes.

Discuss this answer

C_v is given by

Discuss this answer

A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by

C. ACBDA

Discuss this answer

Which one is true for a throttling process?

Discuss this answer

Pick out the wrong statement.

Discuss this answer

Joule-Thomson Co-efficient at any point on the inversion curve is

A. ∞

B. +ve

C. 0

D. -ve

Discuss this answer

Entropy of a substance remains constant during a/an __________ change.

Discuss this answer

For an irreversible process involving only pressure-volume work

Discuss this answer

Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in

Discuss this answer

The first law of thermodynamics is a restatement of the law of conservation of

A. Mass

B. Energy

Discuss this answer

With increase in compression ratio, the efficiency of the otto engine

Discuss this answer

Answer 1

A. Positive

Answer 2

B. Negative

Answer 3

D. Infinity

Answer 4

A. Pressure

Answer 5

B. Temperature

Answer 6

C. Both (A) & (B)

Answer 7

D. Neither (A) nor (B)

Answer 8

A. Specific heat

Answer 9

B. Latent heat of vaporisation

Answer 10

C. Viscosity

Answer 11

D. Specific vapor volume

Answer 12

C. CCl₂F₂

Answer 13

D. C₂H₄Cl₂

Answer 14

A. Lewis-Randall rule

Answer 15

B. Statement of Van't Hoff Equation

Answer 16

C. Le-Chatelier's principle

Answer 17

D. None of these

Answer 18

B. Vaporisation

Answer 19

C. Transition

Answer 20

D. None of these

Answer 21

B. Activity

Answer 22

C. Both (A) & (B)

Answer 23

D. Neither (A) nor (B)

Answer 24

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

Answer 25

B. Applies only to binary systems

Answer 26

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

Answer 27

D. None of these

Answer 28

D. -273°C

Answer 29

A. Not a function of its pressure

Answer 30

B. Not a function of its nature

Answer 31

C. Not a function of its temperature

Answer 32

D. Unity, if it follows PV = nRT

Answer 33

A. (∂E/∂n_i)_{S, v, nj}

Answer 34

B. (∂G/∂n_i)_{T, P, nj} = (∂A/∂ni) _{T, v, nj}

Answer 35

C. (∂H/∂n_i)_{S, P, nj}

Answer 36

D. All (A), (B) and (C)

Answer 37

C. Infinity

Answer 38

D. Negative

Answer 39

B. Non-polar

Answer 40

C. Both (A) & (B)

Answer 41

D. Neither (A) nor (B)

Answer 42

C. Infinity

Answer 43

D. An indeterminate value

Answer 44

A. Isothermal

Answer 45

B. Adiabatic

Answer 46

C. Both (A) & (B)

Answer 47

D. Neither (A) nor (B)

Answer 48

A. Non-flow reversible

Answer 49

B. Adiabatic

Answer 50

C. Both (A) and (B)

Answer 51

D. Neither (A) nor (B)

Answer 52

A. (∂E/∂T)_V

Answer 53

B. (∂E/∂V)_T

Answer 54

C. (∂E/∂P)_V

Answer 55

D. (∂V/∂T)_P

Answer 56

A. P₁ACBP₂P₁

Answer 57

B. ACBB¹A¹A

Answer 58

D. ADBB¹A¹A

Answer 59

A. A gas may have more than one inversion temperatures

Answer 60

B. The inversion temperature is different for different gases

Answer 61

C. The inversion temperature is same for all gases

Answer 62

D. The inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity

Answer 63

A. The chemical potential of a pure substance depends upon the temperature and pressure

Answer 64

B. The chemical potential of a component in a system is directly proportional to the escaping tendency of that component

Answer 65

C. The chemical potential of ith species (μ_i) in an ideal gas mixture approaches zero as the pressure or mole fraction (x_i) tends to be zero at constant temperature

Answer 66

D. The chemical potential of species 'i' in the mixture (μ_i) is mathematically represented as,μ_i = ∂(nG)/∂ni]_T,P,nj where, n, n_i and n_j respectively denote the total number of moles, moles of i^th species and all mole numbers except ith species. 'G' is Gibbs molar free energy

Answer 67

A. Reversible isothermal

Answer 68

B. Irreversible isothermal

Answer 69

C. Reversible adiabatic

Answer 70

D. None of these

Answer 71

A. (dF)_T, p <0

Answer 72

B. (dF)_T, p = 0

Answer 73

C. (dF)_T, p > 0

Answer 74

D. (dA)_T, v >0

Answer 75

A. Increased COP

Answer 76

B. Same COP

Answer 77

C. Decreased COP

Answer 78

D. Increased or decreased COP; depending upon the type of refrigerant

Answer 79

C. Momentum

Answer 80

D. None of these

Answer 81

A. Increases

Answer 82

B. Decreases

Answer 83

C. Remain constant

Answer 84

D. Increases linearly

Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

What is the ratio of adiabatic compressibility to isothermal compressibility?

For a single component two phase mixture, the number of independent variable properties are

Degrees of freedom at triple point will be

For an ideal solution, the value of activity co-efficient is

Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be

The internal energy of an incompressible fluid depends upon its

High __________ is an undesirable property for a good refrigerant.

Which is not a refrigerant?

The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances. This is the

Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of

The standard state of a gas (at a given temperature) is the state in which fugacity is equal to

Gibbs-Duhem equation

The kinetic energy of gas molecule is zero at

Compressibility factor of a gas is

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is

Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.

As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches

The gas law (PV = RT) is true for an __________ change.

Work done may be calculated by the expression ∫ p dA for __________ processes.

C_v is given by

A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by

Which one is true for a throttling process?

Pick out the wrong statement.

Joule-Thomson Co-efficient at any point on the inversion curve is

Entropy of a substance remains constant during a/an __________ change.

For an irreversible process involving only pressure-volume work

Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in

The first law of thermodynamics is a restatement of the law of conservation of

With increase in compression ratio, the efficiency of the otto engine

Also checkout

Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

What is the ratio of adiabatic compressibility to isothermal compressibility?

For a single component two phase mixture, the number of independent variable properties are

Degrees of freedom at triple point will be

For an ideal solution, the value of activity co-efficient is

Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be

The internal energy of an incompressible fluid depends upon its

High __________ is an undesirable property for a good refrigerant.

Which is not a refrigerant?

The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances. This is the

Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of

The standard state of a gas (at a given temperature) is the state in which fugacity is equal to

Gibbs-Duhem equation

The kinetic energy of gas molecule is zero at

Compressibility factor of a gas is

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is

Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.

As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches

The gas law (PV = RT) is true for an __________ change.

Work done may be calculated by the expression ∫ p dA for __________ processes.

Cv is given by

A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by

Which one is true for a throttling process?

Pick out the wrong statement.

Joule-Thomson Co-efficient at any point on the inversion curve is

Entropy of a substance remains constant during a/an __________ change.

For an irreversible process involving only pressure-volume work

Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in

The first law of thermodynamics is a restatement of the law of conservation of

With increase in compression ratio, the efficiency of the otto engine

Also checkout

C_v is given by