The unit of equilibrium constant of a chemical reaction is the same as that of

Question

The unit of equilibrium constant of a chemical reaction is the same as that of

A. Molar concentration

B. Temperature

C. Internal energy

D. None of these

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The equation Tds = dE - PdV applies to

A. Single phase fluid of varying composition

B. Single phase fluid of constant composition

C. Open as well as closed systems

D. Both (B) and (C)

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Fugacity is most helpful in

A. Representing actual behaviour of real gases

B. Representing actual behaviour of ideal gases

C. The study of chemical equilibria involving gases at atmospheric pressure

D. None of these

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During adiabatic expansion of gas

A. Pressure remains constant

B. Pressure is increased

C. Temperature remains constant

D. None of these

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PV^y = constant, holds good for an isentropic process, which is

A. Reversible and isothermal

B. Isothermal and irreversible

C. Reversible and adiabatic

D. Adiabatic and irreversible

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The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and noctane into pure compounds each at 1 atm is

A. -2 RT ln 0.5

B. -RT ln 0.5

C. 0.5 RT

D. 2 RT

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The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant C_v), depends upon its

A. Pressure

B. Volume

C. Temperature

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

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Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.

A. Bomb

B. Separating

C. Bucket

D. Throttling

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The value of C_p & C_v respectively for monatomic 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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A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.

A. Sub-cooled

B. Saturated

C. Non-solidifiable

D. None of these

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Gibbs free energy per mole for a pure substance is equal to the

A. Latent heat of vaporisation

B. Chemical potential

C. Molal boiling point

D. Heat capacity

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First law of thermodynamics deals with the

A. Direction of energy transfer

B. Reversible processes only

C. Irreversible processes only

D. None of these

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Pick out the wrong statement:

A. The expansion of a gas in vacuum is an irreversible process

B. An isometric process is a constant pressure process

C. Entropy change for a reversible adiabatic process is zero

D. Free energy change for a spontaneous process is negative

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The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

A. More

B. Less

C. Same

D. Data insufficient to predict

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Pick out the extensive property out of the following.

A. Surface tension

B. Free energy

C. Specific heat

D. Refractive index

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Henry's law is closely obeyed by a gas, when its __________ is extremely high.

A. Pressure

B. Solubility

C. Temperature

D. None of these

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With increase in pressure (above atmospheric pressure), the C_p of a gas

A. Increases

B. Decreases

C. Remains unchanged

D. First decreases and then increases

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Fugacity and pressure are numerically equal, when the gas is

A. In standard state

B. At high pressure

C. At low temperature

D. In ideal state

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Equilibrium constant decreases as the temperature

A. Increases, for an exothermic reaction

B. Decreases, for an exothermic reaction

C. Increases, for an endothermic reaction

D. None of these

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The reaction A (l) → R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The numbers of degrees of freedom are:

A. 1

B. 2

C. 3

D. 0

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Reduced pressure of a gas is the ratio of its

A. Pressure to critical pressure

B. Critical pressure to pressure

C. Pressure to pseudocritical pressure

D. Pseudocritical pressure to pressure

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For an isothermal process, the internal energy of a gas

A. Increases

B. Decreases

C. Remains unchanged

D. Data insufficient, can't be predicted

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The change in Gibbs free energy for vaporisation of a pure substance is

A. Positive

B. Negative

C. Zero

D. May be positive or negative

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A refrigeration cycle is the same as a __________ cycle,

A. Turbine

B. Heat engine

C. Reversed heat engine

D. None of these

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No work is done by the system, when a reaction occurs at constant

A. Volume

B. Temperature

C. Pressure

D. None of these

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In the decomposition of PCl₅ represented by, PCl₅ PCl₃ + Cl₂, decrease in the pressure of the system will __________ the degree of dissociation of PCl5.

A. Increase

B. Decrease

C. Not alter

D. None of these

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In a reversible process

A. Tds = dE + dW

B. dE - dW = Tds

C. dW - dE = Tds

D. Tds - dW + dE >0

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Mollier chart is a __________ plot.

A. Pressure vs. enthalpy

B. Pressure vs. volume

C. Enthalpy vs. entropy

D. Temperature vs. entropy

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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

A. (∂E/∂n_i)_{S, v, nj}

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

C. (∂H/∂n_i)_{S, P, nj}

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

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PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.

A. Isothermal

B. Isentropic

C. Isobaric

D. Adiabatic

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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

C. Infinity

D. Negative

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Accepted Answer

D. None of these

The unit of equilibrium constant of a chemical reaction is the same as that of

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

The equation Tds = dE - PdV applies to

Fugacity is most helpful in

During adiabatic expansion of gas

PV^y = constant, holds good for an isentropic process, which is

The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and noctane into pure compounds each at 1 atm is

The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant C_v), depends upon its

Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.

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

A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.

Gibbs free energy per mole for a pure substance is equal to the

First law of thermodynamics deals with the

Pick out the wrong statement:

The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

Pick out the extensive property out of the following.

Henry's law is closely obeyed by a gas, when its __________ is extremely high.

With increase in pressure (above atmospheric pressure), the C_p of a gas

Fugacity and pressure are numerically equal, when the gas is

Equilibrium constant decreases as the temperature

The reaction A (l) → R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The numbers of degrees of freedom are:

Reduced pressure of a gas is the ratio of its

For an isothermal process, the internal energy of a gas

The change in Gibbs free energy for vaporisation of a pure substance is

A refrigeration cycle is the same as a __________ cycle,

No work is done by the system, when a reaction occurs at constant

In the decomposition of PCl₅ represented by, PCl₅ PCl₃ + Cl₂, decrease in the pressure of the system will __________ the degree of dissociation of PCl5.

In a reversible process

Mollier chart is a __________ plot.

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

PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.

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

Also checkout

The unit of equilibrium constant of a chemical reaction is the same as that of

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

The equation Tds = dE - PdV applies to

Fugacity is most helpful in

During adiabatic expansion of gas

PVy = constant, holds good for an isentropic process, which is

The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and noctane into pure compounds each at 1 atm is

The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant Cv), depends upon its

Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.

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

A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.

Gibbs free energy per mole for a pure substance is equal to the

First law of thermodynamics deals with the

Pick out the wrong statement:

The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

Pick out the extensive property out of the following.

Henry's law is closely obeyed by a gas, when its __________ is extremely high.

With increase in pressure (above atmospheric pressure), the Cp of a gas

Fugacity and pressure are numerically equal, when the gas is

Equilibrium constant decreases as the temperature

The reaction A (l) → R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The numbers of degrees of freedom are:

Reduced pressure of a gas is the ratio of its

For an isothermal process, the internal energy of a gas

The change in Gibbs free energy for vaporisation of a pure substance is

A refrigeration cycle is the same as a __________ cycle,

No work is done by the system, when a reaction occurs at constant

In the decomposition of PCl5 represented by, PCl5 PCl3 + Cl2, decrease in the pressure of the system will __________ the degree of dissociation of PCl5.

In a reversible process

Mollier chart is a __________ plot.

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

PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.

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

Also checkout

PV^y = constant, holds good for an isentropic process, which is

The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant C_v), depends upon its

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

With increase in pressure (above atmospheric pressure), the C_p of a gas

In the decomposition of PCl₅ represented by, PCl₅ PCl₃ + Cl₂, decrease in the pressure of the system will __________ the degree of dissociation of PCl5.