Which of the following is not a unit of the equilibrium constant K_p? (where, Δx = number of moles of products number of moles of reactants)

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Which of the following is not a unit of the equilibrium constant K_p? (where, Δx = number of moles of products number of moles of reactants)

A. (atm)^Δx, when Δx is negative

B. (atm)^Δx, when Δx is positive

C. Dimensionless, when Δx = 0

D. (atm)^Δx2, when Δx > 0

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Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T) is

A. (T₂ - T₁)/T₂

B. (T₂ - T₁)/T₁

C. (T₁ - T₂)/T₂

D. (T₁ - T₂)/T₁

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Joule-Thomson experiment is

A. Isobaric

B. Adiabatic

C. Isenthalpic

D. Both (B) & (C)

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If atmospheric temperature and dew point are nearly equal, then the relative humidity is

A. Zero

B. 50%

C. Almost 100%

D. unpredictable

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During Joule-Thomson expansion of gases

A. Enthalpy remains constant

B. Entropy remains constant

C. Temperature remains constant

D. None of these

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When a gas is subjected to adiabatic expansion, it gets cooled due to

A. Decrease in velocity

B. Decrease in temperature

C. Decrease in kinetic energy

D. Energy spent in doing work

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Helmholtz free energy (A) is defined as

A. A = H - TS

B. A = E - TS

C. A = H + TS

D. None of these

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Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor)?

A. Freon

B. Liquid sulphur dioxide

C. Methyl chloride

D. Ammonia

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Third law of thermodynamics is helpful in

A. Prediction of the extent of a chemical reaction

B. Calculating absolute entropies of substances at different temperature

C. Evaluating entropy changes of chemical reaction

D. Both (B) and (C)

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For spontaneous changes in an isolated system (S = entropy)

A. ds = 0

B. ds <0

C. ds > 0

D. ds = Constant

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In the equation, PVⁿ = constant, if the value of n is in between 1 and y (i.e. C_p/C_v), then it represents a reversible __________ process.

A. Isometric

B. Polytropic

C. Isentropic

D. Isobaric

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At absolute zero temperature, the __________ of the gas is zero.

A. Pressure

B. Volume

C. Mass

D. None of these

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The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmanns constant, T = absolute temperature)

A. √(2KT/m)

B. √(3KT/m)

C. √(6KT/m)

D. 3KT/m

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Heating of water under atmospheric pressure is an __________ process.

A. Isochoric

B. Isobaric

C. Adiabatic

D. Isothermal

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Joule-Thomson co-efficient is defined as

A. μ = (∂P/∂T)H

B. μ = (∂T/∂P)H

C. μ = (∂E/∂T)H

D. μ = (∂E/∂P)H

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Melting of ice is an example of an __________ process.

A. Adiabatic

B. Isothermal

C. Isometric

D. None of these

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A gas shows deviation from ideal behaviour at

A. Low pressure and high temperature

B. Low pressure and low temperature

C. Low temperature and high pressure

D. High temperature and high pressure

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Filling of gas from a high pressure cylinder into small bottles is an example of a/an __________ process.

A. Equilibrium

B. Adiabatic

C. Steady

D. Unsteady

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Which is an example of closed system?

A. Air compressor

B. Liquid cooling system of an automobile

C. Boiler

D. None of these

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1st law of thermodynamics is nothing but the law of conservation of

A. Momentum

B. Mass

C. Energy

D. None of these

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__________ law of thermodynamics ascertains the direction of a particular spontaneous process.

A. Zeroth

B. First

C. Second

D. Third

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Which of the following is not an intensive property?

A. Chemical potential

B. Surface tension

C. Heat capacity

D. None of these

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The heat capacities for the ideal gas state depend upon the

A. Pressure

B. Temperature

C. Both (A) & (B)

D. Neither (A) nor (B)

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What happens in a reversible adiabatic compression?

A. Heating occurs

B. Cooling occurs

C. Pressure is constant

D. Temperature is constant

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Dry ice is

A. Moisture free ice

B. Solid helium

C. Solid carbon dioxide

D. None of these

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While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is

A. Infinity

B. Unity

C. Constant

D. Negative

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At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.

A. 72

B. 92

C. 142

D. 192

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In polytropic process (PVⁿ = constant), if n = 1; it means a/an __________ process.

A. Adiabatic

B. Reversible

C. Isothermal

D. None of these

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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

A. Lewis-Randall rule

B. Statement of Van't Hoff Equation

C. Le-Chatelier's principle

D. None of these

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What happens in a reversible adiabatic expansion process?

A. Heating takes place

B. Cooling takes place

C. Pressure is constant

D. Temperature is constant

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(∂T/∂P)H is the mathematical expression for

A. Specific heat at constant pressure (C_p)

B. Specific heat at constant volume (C_v)

C. Joule-Thompson co-efficient

D. None of these

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Accepted Answer

D. (atm)^Δx2, when Δx > 0

Which of the following is not a unit of the equilibrium constant K_p? (where, Δx = number of moles of products number of moles of reactants)

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T) is

Joule-Thomson experiment is

If atmospheric temperature and dew point are nearly equal, then the relative humidity is

During Joule-Thomson expansion of gases

When a gas is subjected to adiabatic expansion, it gets cooled due to

Helmholtz free energy (A) is defined as

Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor)?

Third law of thermodynamics is helpful in

For spontaneous changes in an isolated system (S = entropy)

In the equation, PVⁿ = constant, if the value of n is in between 1 and y (i.e. C_p/C_v), then it represents a reversible __________ process.

At absolute zero temperature, the __________ of the gas is zero.

The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmanns constant, T = absolute temperature)

Heating of water under atmospheric pressure is an __________ process.

Joule-Thomson co-efficient is defined as

Melting of ice is an example of an __________ process.

A gas shows deviation from ideal behaviour at

Filling of gas from a high pressure cylinder into small bottles is an example of a/an __________ process.

Which is an example of closed system?

1st law of thermodynamics is nothing but the law of conservation of

__________ law of thermodynamics ascertains the direction of a particular spontaneous process.

Which of the following is not an intensive property?

The heat capacities for the ideal gas state depend upon the

What happens in a reversible adiabatic compression?

Dry ice is

While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is

At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.

In polytropic process (PVⁿ = constant), if n = 1; it means a/an __________ process.

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

What happens in a reversible adiabatic expansion process?

(∂T/∂P)H is the mathematical expression for

Also checkout

Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants)

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T) is

Joule-Thomson experiment is

If atmospheric temperature and dew point are nearly equal, then the relative humidity is

During Joule-Thomson expansion of gases

When a gas is subjected to adiabatic expansion, it gets cooled due to

Helmholtz free energy (A) is defined as

Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor)?

Third law of thermodynamics is helpful in

For spontaneous changes in an isolated system (S = entropy)

In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible __________ process.

At absolute zero temperature, the __________ of the gas is zero.

The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmanns constant, T = absolute temperature)

Heating of water under atmospheric pressure is an __________ process.

Joule-Thomson co-efficient is defined as

Melting of ice is an example of an __________ process.

A gas shows deviation from ideal behaviour at

Filling of gas from a high pressure cylinder into small bottles is an example of a/an __________ process.

Which is an example of closed system?

1st law of thermodynamics is nothing but the law of conservation of

__________ law of thermodynamics ascertains the direction of a particular spontaneous process.

Which of the following is not an intensive property?

The heat capacities for the ideal gas state depend upon the

What happens in a reversible adiabatic compression?

Dry ice is

While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is

At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.

In polytropic process (PVn = constant), if n = 1; it means a/an __________ process.

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

What happens in a reversible adiabatic expansion process?

(∂T/∂P)H is the mathematical expression for

Also checkout

Which of the following is not a unit of the equilibrium constant K_p? (where, Δx = number of moles of products number of moles of reactants)

Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T) is

In the equation, PVⁿ = constant, if the value of n is in between 1 and y (i.e. C_p/C_v), then it represents a reversible __________ process.

In polytropic process (PVⁿ = constant), if n = 1; it means a/an __________ process.