In a turbine, the fluid expands almost

Question

In a turbine, the fluid expands almost

A. Isothermally

B. Isobarically

C. Adiabatically

D. None of these

Share this question with your friends

Show all Chemical Engineering Thermodynamics MCQ

Comment

All gases except __________ shows a cooling effect during throttling process at atmospheric temperature and pressure.

A. Oxygen

B. Nitrogen

C. Air

D. Hydrogen

Discuss this answer

A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is

A. Zero

B. Positive

C. Negative

D. None of these

Discuss this answer

The standard Gibbs free energy change of a reaction depends on the equilibrium

A. Pressure

B. Temperature

C. Composition

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

Discuss this answer

Heat pump

A. Accomplishes only space heating in winter

B. Accomplishes only space cooling in summer

C. Accomplishes both (A) and (B)

D. Works on Carnot cycle

Discuss this answer

d_W and d_q are not the exact differential, because q and W are

A. State functions

B. Path functions

C. Intensive properties

D. Extensive properties

Discuss this answer

One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is

A. 30554

B. 10373

C. 4988.4

D. 4364.9

Discuss this answer

Degrees of freedom at triple point will be

A. 0

B. 1

C. 2

D. 3

Discuss this answer

For a real gas, the chemical potential is given by

A. RT d ln P

B. RT d ln f

C. R d ln f

D. None of these

Discuss this answer

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, T_R (where, T₁ and T₂ are source & surrounding temperatures respectively.)?

A. T_R/(T₂ - T_R) × (T₁ - T₂)/T₁

B. T_R/(T₂ - T_R) × T₁/(T₁ - T₂)

C. T_R/(T₁ - T_R) × (T₁ - T₂)/T₁

D. None of these

Discuss this answer

Mollier chart is a __________ plot.

A. Pressure vs. enthalpy

B. Pressure vs. volume

C. Enthalpy vs. entropy

D. Temperature vs. entropy

Discuss this answer

The equilibrium constant for a chemical reaction at two different temperatures is given by

A. Kp₂/Kp₁ = - (ΔH/R) (1/T₂ - 1/T₁)

B. Kp₂/Kp₁ = (ΔH/R) (1/T₂ - 1/T₁)

C. Kp₂/Kp₁ = ΔH (1/T₂ - 1/T₁)

D. Kp₂/Kp₁ = - (1/R) (1/T₂ - 1/T₁)

Discuss this answer

An isentropic process is carried out at constant

A. Volume

B. Pressure

C. Temperature

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

Discuss this answer

A system is said to be at equilibrium, if the entropy of the system has reached __________ value.

A. Minimum

B. Zero

C. Maximum

D. None of these

Discuss this answer

In case of an __________ process, the temperature of the system increases.

A. Isothermal compression

B. Isothermal expansion

C. Adiabatic expansion

D. Adiabatic compression

Discuss this answer

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

A. Momentum

B. Mass

C. Energy

D. None of these

Discuss this answer

Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

A. Always greater than one

B. Same at the same reduced temperature

C. Same at the same reduced pressure

D. Both (B) & (C)

Discuss this answer

A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is

A. 349

B. 651

C. 667

D. 1000

Discuss this answer

Mollier diagram is a plot of

A. Temperature vs. enthalpy

B. Temperature vs. enthalpy

C. Entropy vs. enthalpy

D. Temperature vs. internal energy

Discuss this answer

__________ does not change during phase transformation processes like sublimation, melting & vaporisation.

A. Entropy

B. Gibbs free energy

C. Internal energy

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

Discuss this answer

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

Discuss this answer

Which of the following is not affected by temperature changes?

A. Fugacity

B. Activity co-efficient

C. Free energy

D. None of these

Discuss this answer

4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

A. 4 J

B. ∞

C. 0

D. 8 J

Discuss this answer

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

Discuss this answer

The energy of activation of exothermic reaction is

A. Zero

B. Negative

C. Very large compared to that for endothermic reaction

D. Not possible to predict

Discuss this answer

The heat capacities for the ideal gas state depend upon the

A. Pressure

B. Temperature

C. Both (A) & (B)

D. Neither (A) nor (B)

Discuss this answer

Isentropic process means a constant __________ process.

A. Enthalpy

B. Pressure

C. Entropy

D. None of these

Discuss this answer

Pick out the wrong statement.

A. Activity co-efficient is dimensionless.

B. In case of an ideal gas, the fugacity is equal to its pressure.

C. In a mixture of ideal gases, the fugacity of a component is equal to the partial pressure of the component.

D. The fugacity co-efficient is zero for an ideal gas

Discuss this answer

In case of the decomposition of hydroiodic acid (2HI H₂ + I₂), addition of H₂ (at equilibrium condition) will

A. Increase the partial pressure of I₂

B. Decrease the partial pressure of HI

C. Diminish the degree of dissociation of HI

D. None of these

Discuss this answer

The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)_T = T(∂P/∂T)_H - P. This equation is called the

A. Maxwell's equation

B. Thermodynamic equation of state

C. Equation of state

D. Redlich-Kwong equation of state

Discuss this answer

Fugacity co-efficient of a substance is the ratio of its fugacity to

A. Mole fraction

B. Activity

C. Pressure

D. Activity co-efficient

Discuss this answer

Accepted Answer

C. Adiabatically

In a turbine, the fluid expands almost

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

All gases except __________ shows a cooling effect during throttling process at atmospheric temperature and pressure.

A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is

The standard Gibbs free energy change of a reaction depends on the equilibrium

Heat pump

d_W and d_q are not the exact differential, because q and W are

One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is

Degrees of freedom at triple point will be

For a real gas, the chemical potential is given by

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, T_R (where, T₁ and T₂ are source & surrounding temperatures respectively.)?

Mollier chart is a __________ plot.

The equilibrium constant for a chemical reaction at two different temperatures is given by

An isentropic process is carried out at constant

A system is said to be at equilibrium, if the entropy of the system has reached __________ value.

In case of an __________ process, the temperature of the system increases.

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

Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is

Mollier diagram is a plot of

__________ does not change during phase transformation processes like sublimation, melting & vaporisation.

In Joule-Thomson porous plug experiment, the

Which of the following is not affected by temperature changes?

4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

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

The energy of activation of exothermic reaction is

The heat capacities for the ideal gas state depend upon the

Isentropic process means a constant __________ process.

Pick out the wrong statement.

In case of the decomposition of hydroiodic acid (2HI H₂ + I₂), addition of H₂ (at equilibrium condition) will

The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)_T = T(∂P/∂T)_H - P. This equation is called the

Fugacity co-efficient of a substance is the ratio of its fugacity to

Also checkout

In a turbine, the fluid expands almost

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

All gases except __________ shows a cooling effect during throttling process at atmospheric temperature and pressure.

A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is

The standard Gibbs free energy change of a reaction depends on the equilibrium

Heat pump

dW and dq are not the exact differential, because q and W are

One mole of nitrogen at 8 bar and 600 K is contained in a piston-cylinder arrangement. It is brought to 1 bar isothermally against a resisting pressure of 1 bar. The work done (in Joules) by the gas is

Degrees of freedom at triple point will be

For a real gas, the chemical potential is given by

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.)?

Mollier chart is a __________ plot.

The equilibrium constant for a chemical reaction at two different temperatures is given by

An isentropic process is carried out at constant

A system is said to be at equilibrium, if the entropy of the system has reached __________ value.

In case of an __________ process, the temperature of the system increases.

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

Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is

Mollier diagram is a plot of

__________ does not change during phase transformation processes like sublimation, melting & vaporisation.

In Joule-Thomson porous plug experiment, the

Which of the following is not affected by temperature changes?

4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

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

The energy of activation of exothermic reaction is

The heat capacities for the ideal gas state depend upon the

Isentropic process means a constant __________ process.

Pick out the wrong statement.

In case of the decomposition of hydroiodic acid (2HI H2 + I2), addition of H2 (at equilibrium condition) will

The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)T = T(∂P/∂T)H - P. This equation is called the

Fugacity co-efficient of a substance is the ratio of its fugacity to

Also checkout

d_W and d_q are not the exact differential, because q and W are

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, T_R (where, T₁ and T₂ are source & surrounding temperatures respectively.)?

In case of the decomposition of hydroiodic acid (2HI H₂ + I₂), addition of H₂ (at equilibrium condition) will

The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)_T = T(∂P/∂T)_H - P. This equation is called the