Vapour Pressure of Liquid Solutions
CHXII02:SOLUTIONS

319441 The lubricating action of an oil is more if it possesses:

1 High vapour pressure
2 Low vapour pressure
3 High surface tension
4 High density
CHXII02:SOLUTIONS

319442 For an ideal binary liquid mixture

1 \({\rm{\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0}}\)
2 \({\rm{\Delta }}{{\rm{H}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ < 0}}\)
3 \({\rm{\Delta }}{{\rm{V}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ > 0}}\)
4 \({\rm{\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ > 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ < 0}}\)
CHXII02:SOLUTIONS

319443 Benzene and toluene form nearly ideal solution. At \(20^{\circ} \mathrm{C}\), the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at \(20^{\circ} \mathrm{C}\) for a solution containing 78 g of benzene and 46 g of toluene (in torr) is

1 50
2 25
3 37.5
4 53.5
CHXII02:SOLUTIONS

319444 I. n-hexane + n-heptane
II. acetone + ethanol
III. bromoethane + chloroethane
IV. benzene + toluene
Which of the following combination is an example of ideal solutions ?

1 I, II, III
2 II, III, IV
3 I, III, IV
4 I, II, IV
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CHXII02:SOLUTIONS

319441 The lubricating action of an oil is more if it possesses:

1 High vapour pressure
2 Low vapour pressure
3 High surface tension
4 High density
CHXII02:SOLUTIONS

319442 For an ideal binary liquid mixture

1 \({\rm{\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0}}\)
2 \({\rm{\Delta }}{{\rm{H}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ < 0}}\)
3 \({\rm{\Delta }}{{\rm{V}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ > 0}}\)
4 \({\rm{\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ > 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ < 0}}\)
CHXII02:SOLUTIONS

319443 Benzene and toluene form nearly ideal solution. At \(20^{\circ} \mathrm{C}\), the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at \(20^{\circ} \mathrm{C}\) for a solution containing 78 g of benzene and 46 g of toluene (in torr) is

1 50
2 25
3 37.5
4 53.5
CHXII02:SOLUTIONS

319444 I. n-hexane + n-heptane
II. acetone + ethanol
III. bromoethane + chloroethane
IV. benzene + toluene
Which of the following combination is an example of ideal solutions ?

1 I, II, III
2 II, III, IV
3 I, III, IV
4 I, II, IV
CHXII02:SOLUTIONS

319441 The lubricating action of an oil is more if it possesses:

1 High vapour pressure
2 Low vapour pressure
3 High surface tension
4 High density
CHXII02:SOLUTIONS

319442 For an ideal binary liquid mixture

1 \({\rm{\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0}}\)
2 \({\rm{\Delta }}{{\rm{H}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ < 0}}\)
3 \({\rm{\Delta }}{{\rm{V}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ > 0}}\)
4 \({\rm{\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ > 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ < 0}}\)
CHXII02:SOLUTIONS

319443 Benzene and toluene form nearly ideal solution. At \(20^{\circ} \mathrm{C}\), the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at \(20^{\circ} \mathrm{C}\) for a solution containing 78 g of benzene and 46 g of toluene (in torr) is

1 50
2 25
3 37.5
4 53.5
CHXII02:SOLUTIONS

319444 I. n-hexane + n-heptane
II. acetone + ethanol
III. bromoethane + chloroethane
IV. benzene + toluene
Which of the following combination is an example of ideal solutions ?

1 I, II, III
2 II, III, IV
3 I, III, IV
4 I, II, IV
CHXII02:SOLUTIONS

319441 The lubricating action of an oil is more if it possesses:

1 High vapour pressure
2 Low vapour pressure
3 High surface tension
4 High density
CHXII02:SOLUTIONS

319442 For an ideal binary liquid mixture

1 \({\rm{\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0}}\)
2 \({\rm{\Delta }}{{\rm{H}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ < 0}}\)
3 \({\rm{\Delta }}{{\rm{V}}_{\left( {{\rm{mix}}} \right)}}{\rm{ = 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ > 0}}\)
4 \({\rm{\Delta }}{{\rm{S}}_{\left( {{\rm{mix}}} \right)}}{\rm{ > 0;\Delta }}{{\rm{G}}_{\left( {{\rm{mix}}} \right)}}{\rm{ < 0}}\)
CHXII02:SOLUTIONS

319443 Benzene and toluene form nearly ideal solution. At \(20^{\circ} \mathrm{C}\), the vapour pressure of benzene is 75 torr and that of toluene is 22 torr. The partial vapour pressure of benzene at \(20^{\circ} \mathrm{C}\) for a solution containing 78 g of benzene and 46 g of toluene (in torr) is

1 50
2 25
3 37.5
4 53.5
CHXII02:SOLUTIONS

319444 I. n-hexane + n-heptane
II. acetone + ethanol
III. bromoethane + chloroethane
IV. benzene + toluene
Which of the following combination is an example of ideal solutions ?

1 I, II, III
2 II, III, IV
3 I, III, IV
4 I, II, IV
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