As the time is passing, entropy of the universe

Question

As the time is passing, entropy of the universe

A. Is increasing

B. Is decreasing

C. Remain constant

D. Data insufficient, can't be predicted

Share this question with your friends

Show all Chemical Engineering Thermodynamics MCQ

Comment

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

For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

A. Decreases

B. Increases

C. Remain same

D. Decreases linearly

Discuss this answer

Specific volume of an ideal gas is

A. Equal to its density

B. The reciprocal of its density

C. Proportional to pressure

D. None of these

Discuss this answer

Entropy of the system decreases, when

A. Snow melts into water

B. A gas expands spontaneously from high pressure to low pressure

C. Water is converted into ice

D. Both (B) & (C)

Discuss this answer

Pick out the correct statement.

A. Entropy and enthalpy are path functions

B. In a closed system, the energy can be exchanged with the surrounding, while matter cannot be exchanged

C. All the natural processes are reversible in nature

D. Work is a state function

Discuss this answer

The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

A. Gibbs-Duhem

B. Van Laar

C. Gibbs-Helmholtz

D. Margules

Discuss this answer

Lenz's law results from the law of conservation of

A. Mass

B. Momentum

C. Energy

D. None of these

Discuss this answer

The expression, nRT ln(P₁/P₂), is for the __________of an ideal gas.

A. Compressibility

B. Work done under adiabatic condition

C. Work done under isothermal condition

D. Co-efficient of thermal expansion

Discuss this answer

The ammonia synthesis reaction represented by N₂ + 3H₂ 2NH₃; ΔH = - 22.4 kcal, is

A. Endothermic

B. Exothermic

C. Isothermal

D. Adiabatic

Discuss this answer

Gibbs free energy of a pure fluid approaches __________ as the pressure tends to zero at constant temperature.

A. Infinity

B. Minus infinity

C. Zero

D. None of these

Discuss this answer

As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T) approaches

A. Zero

B. Unity

C. Infinity

D. None of these

Discuss this answer

In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process.

A. Isobaric

B. Isothermal

C. Isentropic

D. Isometric

Discuss this answer

Critical compressibility factor for all substances

A. Are more or less constant (vary from 0.2 to 0.3)

B. Vary as square of the absolute temperature

C. Vary as square of the absolute pressure

D. None of these

Discuss this answer

The total change in the enthalpy of a system is independent of the

A. Number of intermediate chemical reactions involved

B. Pressure and temperature

C. State of combination and aggregation in the beginning and at the end of the reaction

D. None of these

Discuss this answer

At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.

A. Eutectic

B. Triple

C. Plait

D. Critical

Discuss this answer

Extensive properties of a thermodynamic system depend upon the __________ of the system.

A. Specific volume

B. Temperature

C. Mass

D. Pressure

Discuss this answer

On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will

A. Increase

B. Decrease

C. Remain same

D. Increase in summer and will decrease in winter

Discuss this answer

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

A. Increases

B. Decreases

C. Remain constant

D. Increases linearly

Discuss this answer

The absolute entropy for all crystalline substances at absolute zero temperature is

A. Zero

B. Negative

C. More than zero

D. Indeterminate

Discuss this answer

The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is

A. Less

B. More

C. Same

D. Dependent on climatic conditions

Discuss this answer

For an isothermal process, the internal energy of a gas

A. Increases

B. Decreases

C. Remains unchanged

D. Data insufficient, can't be predicted

Discuss this answer

Which is a state function?

A. Specific volume

B. Work

C. Pressure

D. Temperature

Discuss this answer

Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas.

A. Less than

B. Same as

C. More than

D. Half

Discuss this answer

C_v for an ideal gas

A. Does not depend upon temperature

B. Is independent of pressure only

C. Is independent of volume only

D. Is independent of both pressure and volume

Discuss this answer

The quantitative effect of temperature on chemical equilibrium is given by the

A. Vant-Hoff equation

B. Le-Chatelier's principle

C. Arrhenius equation

D. None of these

Discuss this answer

The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture. This is

A. The statement as per Gibbs-Helmholtz

B. Called Lewis-Randall rule

C. Henry's law

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

Joule-Thomson co-efficient depends on the

A. Pressure

B. Temperature

C. Both (A) & (B)

D. Neither (A) nor (B)

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 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

Accepted Answer

A. Is increasing

As the time is passing, entropy of the universe

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

Mollier diagram is a plot of

For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

Specific volume of an ideal gas is

Entropy of the system decreases, when

Pick out the correct statement.

The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

Lenz's law results from the law of conservation of

The expression, nRT ln(P₁/P₂), is for the __________of an ideal gas.

The ammonia synthesis reaction represented by N₂ + 3H₂ 2NH₃; ΔH = - 22.4 kcal, is

Gibbs free energy of a pure fluid approaches __________ as the pressure tends to zero at constant temperature.

As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T) approaches

In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process.

Critical compressibility factor for all substances

The total change in the enthalpy of a system is independent of the

At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.

Extensive properties of a thermodynamic system depend upon the __________ of the system.

On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will

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

The absolute entropy for all crystalline substances at absolute zero temperature is

The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is

For an isothermal process, the internal energy of a gas

Which is a state function?

Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas.

C_v for an ideal gas

The quantitative effect of temperature on chemical equilibrium is given by the

The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture. This is

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

Joule-Thomson co-efficient depends on the

Mollier chart is a __________ plot.

The heat capacities for the ideal gas state depend upon the

Also checkout

As the time is passing, entropy of the universe

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

Mollier diagram is a plot of

For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

Specific volume of an ideal gas is

Entropy of the system decreases, when

Pick out the correct statement.

The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

Lenz's law results from the law of conservation of

The expression, nRT ln(P1/P2), is for the __________of an ideal gas.

The ammonia synthesis reaction represented by N2 + 3H2 2NH3; ΔH = - 22.4 kcal, is

Gibbs free energy of a pure fluid approaches __________ as the pressure tends to zero at constant temperature.

As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T) approaches

In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process.

Critical compressibility factor for all substances

The total change in the enthalpy of a system is independent of the

At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.

Extensive properties of a thermodynamic system depend upon the __________ of the system.

On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will

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

The absolute entropy for all crystalline substances at absolute zero temperature is

The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is

For an isothermal process, the internal energy of a gas

Which is a state function?

Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas.

Cv for an ideal gas

The quantitative effect of temperature on chemical equilibrium is given by the

The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture. This is

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

Joule-Thomson co-efficient depends on the

Mollier chart is a __________ plot.

The heat capacities for the ideal gas state depend upon the

Also checkout

The expression, nRT ln(P₁/P₂), is for the __________of an ideal gas.

The ammonia synthesis reaction represented by N₂ + 3H₂ 2NH₃; ΔH = - 22.4 kcal, is

C_v for an ideal gas