-2 RT ln 0.5

-RT ln 0.5

0.5 RT

2 RT

B. -RT ln 0.5

Constant volume

Polytropic

Adiabatic

Constant pressure

_{vap}/RT^{2}

^{2}/H_{vap}

^{2}/H_{vap}

_{vap}/RT^{2}

0

1

2

3

H = E - PV

H = F - TS

H - E = PV

None of these

Is increasing

Is decreasing

Remain constant

Data insufficient, can't be predicted

Path

Point

State

None of these

Enthalpy remains constant

Entropy remains constant

Temperature remains constant

None of these

Momentum

Mass

Energy

None of these

Heat capacity

Molal heat capacity

Pressure

Concentration

Critical

Boyle

Inversion

Reduced

Binary solutions

Ternary solutions

Azeotropic mixture only

None of these

_{1}ACBP_{2}P_{1}

^{1}A^{1}A

ACBDA

^{1}A^{1}A

T

T and P

T, P and Z

T and Z

Volume, mass and number of moles

Free energy, entropy and enthalpy

Both (A) and (B)

None of these

Volume

Temperature

Pressure

None of these

Shifting the equilibrium towards right

Shifting the equilibrium towards left

No change in equilibrium condition

None of these

Not have a sub-atmospheric vapour pressure at the temperature in the refrigerator coils

Not have unduly high vapour pressure at the condenser temperature

Both (A) and (B)

Have low specific heat

In an isothermal system, irreversible work is more than reversible work

Under reversible conditions, the adiabatic work is less than isothermal work

Heat, work, enthalpy and entropy are all 'state functions'

Matter and energy cannot be exchanged with the surroundings in a closed system

Two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same

The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature

No gas can be liquefied above the critical temperature, howsoever high the pressure may be.

The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories)

Volume

Mass

Critical temperature

None of these

An open system of constant composition

A closed system of constant composition

An open system with changes in composition

A closed system with changes in composition

In standard state

At high pressure

At low temperature

In ideal state

Molar concentration

Temperature

Internal energy

None of these

2.73

28.3

273

283

Steam to ethylene ratio

Temperature

Pressure

None of these

Volume

Pressure

Temperature

All a, b & c

Increases

Decreases

Remains unchanged

May increase or decrease; depends on the gas

0.15

1.5

4.5

6.5

Equation of state

Gibbs Duhem equation

Ideal gas equation

None of these

580

640

1160

Data insufficient; can't be computed