Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are PvB and Pvw respectively. The partial pressure of benzene in air-vapour mixture is

Stoichiometry
Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are PvB and Pvw respectively. The partial pressure of benzene in air-vapour mixture is

PvB

XB.Patm

XB.PvB

(Patm - Pvw)xB

PvB

XB.Patm

XB.PvB

(Patm - Pvw)xB

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Stoichiometry
Viscosity of atmospheric air may be about __________ centipoise.

0.015

150

1.5

15

0.015

150

1.5

15

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Stoichiometry
Dry air is a mixture of

Both A & B

Gases

Vapors

Neither A nor B

Both A & B

Gases

Vapors

Neither A nor B

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Stoichiometry
On mixing 56 gm of CaO with 63 gm of HNO₃, the amount of Ca(NO₃)₂ formed is __________ gm.

82

164

8.2

41

82

164

8.2

41

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Stoichiometry
During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change.

Gibbs free energy

Entropy

Enthalpy

Internal energy

Gibbs free energy

Entropy

Enthalpy

Internal energy

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Stoichiometry
A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be

-136.5°K

0°K

-136.5°C

0°C

-136.5°K

0°K

-136.5°C

0°C

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Stoichiometry

Stoichiometry Viscosity of atmospheric air may be about __________ centipoise.

Stoichiometry Dry air is a mixture of

Stoichiometry On mixing 56 gm of CaO with 63 gm of HNO₃, the amount of Ca(NO₃)₂ formed is __________ gm.

Stoichiometry During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change.

Stoichiometry A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be

Stoichiometry
Viscosity of atmospheric air may be about __________ centipoise.

Stoichiometry
Dry air is a mixture of

Stoichiometry
On mixing 56 gm of CaO with 63 gm of HNO₃, the amount of Ca(NO₃)₂ formed is __________ gm.

Stoichiometry
During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change.

Stoichiometry
A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be