Non-flow reversible

Adiabatic

Both (A) and (B)

Neither (A) nor (B)

C. Both (A) and (B)

Temperature

Specific heat

Volume

Pressure

100

50

205

200

Becomes zero

Becomes infinity

Equals 1 kcal/kmol °K

Equals 0.24 kcal/kmol °K

Momentum

Mass

Energy

None of these

Concentration of the constituents only

Quantities of the constituents only

Temperature only

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

Oxygen

Nitrogen

Air

Hydrogen

Accomplishes only space heating in winter

Accomplishes only space cooling in summer

Accomplishes both (A) and (B)

Works on Carnot cycle

Does not depend upon temperature

Is independent of pressure only

Is independent of volume only

Is independent of both pressure and volume

Isothermal

Isentropic

Isobaric

Adiabatic

Increases

Decreases

Remains unchanged

Decreases linearly

Less

More

Same

Dependent on climatic conditions

Zero

Unity

Infinity

An indeterminate value

Low T, low P

High T, high P

Low T, high P

High T, low P

Representing actual behaviour of real gases

Representing actual behaviour of ideal gases

The study of chemical equilibria involving gases at atmospheric pressure

None of these

Air cycle

Carnot cycle

Ordinary vapour compression cycle

Vapour compression with a reversible expansion engine

Negative

Zero

Infinity

None of these

Ice at the base contains impurities which lowers its melting point

Due to the high pressure at the base, its melting point reduces

The iceberg remains in a warmer condition at the base

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

Ideal

Very high pressure

Very low temperature

All of the above

Low temperature

High pressure

Both (A) and (B)

Neither (A) nor (B)

_{2}/Kp_{1} = - (ΔH/R) (1/T_{2} - 1/T_{1})

_{2}/Kp_{1} = (ΔH/R) (1/T_{2} - 1/T_{1})

_{2}/Kp_{1} = ΔH (1/T_{2} - 1/T_{1})

_{2}/Kp_{1} = - (1/R) (1/T_{2} - 1/T_{1})

ΔF = ΔH + T [∂(ΔF)/∂T]P

ΔF = ΔH - TΔT

d(E - TS) T, V < 0

_{vap}/T.ΔV_{vap}

Increases

Decreases

Remains unchanged

May increase or decrease; depends on the substance

Expansion of an ideal gas against constant pressure

Atmospheric pressure vaporisation of water at 100°C

Solution of NaCl in water at 50°C

None of these

0

1

2

3

Increase

Decrease

Remain unchanged

First fall and then rise

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)

^{2})(V - b) = nRT

PV = nRT

^{2} + D/V^{3} + ...

None of these

The expansion of a gas in vacuum is an irreversible process

An isometric process is a constant pressure process

Entropy change for a reversible adiabatic process is zero

Free energy change for a spontaneous process is negative

_{2})

_{V} = - E/T_{2}

Both (A) and (B)

Neither (A) nor (B)

Reversible and isothermal

Isothermal and irreversible

Reversible and adiabatic

Adiabatic and irreversible