T

√T

^{2}

1/√T

A. T

Zero

Negative

More than zero

Indeterminate

A refrigeration cycle violates the second law of thermodynamics

Refrigeration cycle is normally represented by a temperature vs. entropy plot

In a refrigerator, work required decreases as the temperature of the refrigerator and the temperature at which heat is rejected increases

One ton of refrigeration is equivalent to the rate of heat absorption equal to 3.53 kW

Isothermally

Isobarically

Adiabatically

None of these

+ve

0

-ve

∞

Like internal energy and enthalpy, the absolute value of standard entropy for elementary substances is zero

Melting of ice involves increase in enthalpy and a decrease in randomness

The internal energy of an ideal gas depends only on its pressure

Maximum work is done under reversible conditions

Zero

50%

Almost 100%

unpredictable

Van Laar

Margules

Gibbs-Duhem

Gibbs-Duhem-Margules

Low T, low P

High T, high P

Low T, high P

High T, low P

Increases

Decreases

Remains unchanged

First decreases and then increases

Zeroth

First

Second

Third

Mole fraction

Fugacity at the same temperature and pressure

Partial pressure

None of these

Is the most efficient of all refrigeration cycles

Has very low efficiency

Requires relatively large quantities of air to achieve a significant amount of refrigeration

Both (B) and (C)

Tds = dE + dW

dE - dW = Tds

dW - dE = Tds

Tds - dW + dE >0

ds = 0

ds <0

ds > 0

ds = Constant

Same in both the phases

Zero in both the phases

More in vapour phase

More in liquid phase

Temperature vs. enthalpy

Temperature vs. enthalpy

Entropy vs. enthalpy

Temperature vs. internal energy

Heat

Momentum

Energy

Work

Same

Doubled

Halved

One fourth of its original value

State functions

Path functions

Intensive properties

Extensive properties

Heat capacity of a crystalline solid is zero at absolute zero temperature

Heat transfer from low temperature to high temperature source is not possible without external work

Gases having same reduced properties behaves similarly

None of these

Mass

Energy

Momentum

None of these

_{2} + I_{2}

_{2}O_{4} 2NO_{2}

_{2} + O_{2} 2SO_{3}

None of these

Negative

Zero

Infinity

None of these

Volume, mass and number of moles

Free energy, entropy and enthalpy

Both (A) and (B)

None of these

Air cycle

Carnot cycle

Ordinary vapor compression cycle

Vapor compression with a reversible expansion engine

Initial concentration of the reactant

Pressure

Temperature

None of these

Adiabatic process

Endothermic reaction

Exothermic reaction

Process involving a chemical reaction

Low pressure and high temperature

Low pressure and low temperature

Low temperature and high pressure

High temperature and high pressure

Increases

Decreases

Remains unchanged

Decreases linearly

Pressure

Temperature

Both (A) & (B)

Neither (A) nor (B)