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

No change in the value of COP

Increased or decreased COP ; depending upon the type of refrigerant

Enhanced COP

Decreased COP

No change in the value of COP

Increased or decreased COP ; depending upon the type of refrigerant

Enhanced COP

Decreased COP

ANSWER DOWNLOAD EXAMIANS APP

Chemical Engineering Thermodynamics
The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance.

Heating

Cooling

Both B and C

Simultaneous pressure & temperature change

Heating

Cooling

Both B and C

Simultaneous pressure & temperature change

ANSWER DOWNLOAD EXAMIANS APP

Chemical Engineering Thermodynamics
A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect?

Vapor compression cycle using expansion engine

Vapor compression cycle using expansion valve

Air refrigeration cycle

Carnot refrigeration cycle

Vapor compression cycle using expansion engine

Vapor compression cycle using expansion valve

Air refrigeration cycle

Carnot refrigeration cycle

ANSWER DOWNLOAD EXAMIANS APP

Chemical Engineering Thermodynamics
Heat of reaction is

Dependent on pressure only

Dependent on temperature only

Dependent on both pressure and temperature

Independent of temperature changes

Dependent on pressure only

Dependent on temperature only

Dependent on both pressure and temperature

Independent of temperature changes

ANSWER DOWNLOAD EXAMIANS APP

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)Δx, when Δx is negative

(atm)Δx, when Δx is positive

Dimensionless, when Δx = 0

(atm)Δx2, when Δx > 0

(atm)Δx, when Δx is negative

(atm)Δx, when Δx is positive

Dimensionless, when Δx = 0

(atm)Δx2, when Δx > 0

ANSWER DOWNLOAD EXAMIANS APP

Chemical Engineering Thermodynamics
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

Negative

Unity

Infinity

Constant

Negative

Unity

Infinity

Constant

ANSWER DOWNLOAD EXAMIANS APP

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 The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance.

Chemical Engineering Thermodynamics A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect?

Chemical Engineering Thermodynamics Heat of reaction is

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 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

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

Chemical Engineering Thermodynamics
The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance.

Chemical Engineering Thermodynamics
A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect?

Chemical Engineering Thermodynamics
Heat of reaction is

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
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