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

Chemical Engineering Thermodynamics
In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

Enhanced COP

Decreased COP

Increased or decreased COP ; depending upon the type of refrigerant

No change in the value of COP

Enhanced COP

Decreased COP

Increased or decreased COP ; depending upon the type of refrigerant

No change in the value of COP

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Chemical Engineering Thermodynamics
Free energy

Change during a spontaneous process has a negative value

All of these

Remains unchanged in reversible processes carried at constant temperature and pressure

Decreases in all spontaneous (or irreversible) processes

Change during a spontaneous process has a negative value

All of these

Remains unchanged in reversible processes carried at constant temperature and pressure

Decreases in all spontaneous (or irreversible) processes

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Chemical Engineering Thermodynamics
In a homogeneous solution, the activity co-efficient of a component depends upon the

All of these

Pressure

Composition

Temperature

All of these

Pressure

Composition

Temperature

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Chemical Engineering Thermodynamics
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope?

3

2

1

3

2

1

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Chemical Engineering Thermodynamics
With increase in temperature, the atomic heat capacities of all solid elements

Decreases

Increases

Remains unchanged

Decreases linearly

Decreases

Increases

Remains unchanged

Decreases linearly

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Chemical Engineering Thermodynamics
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)

(atm)Δx2, when Δx > 0

(atm)Δx, when Δx is negative

Dimensionless, when Δx = 0

(atm)Δx, when Δx is positive

(atm)Δx2, when Δx > 0

(atm)Δx, when Δx is negative

Dimensionless, when Δx = 0

(atm)Δx, when Δx is positive

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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

Chemical Engineering Thermodynamics Free energy

Chemical Engineering Thermodynamics In a homogeneous solution, the activity co-efficient of a component depends upon the

Chemical Engineering Thermodynamics What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope?

Chemical Engineering Thermodynamics With increase in temperature, the atomic heat capacities of all solid elements

Chemical Engineering Thermodynamics 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)

Chemical Engineering Thermodynamics
In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in

Chemical Engineering Thermodynamics
Free energy

Chemical Engineering Thermodynamics
In a homogeneous solution, the activity co-efficient of a component depends upon the

Chemical Engineering Thermodynamics
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope?

Chemical Engineering Thermodynamics
With increase in temperature, the atomic heat capacities of all solid elements

Chemical Engineering Thermodynamics
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)