Vapour Pressure of Liquid Solutions
CHXII02:SOLUTIONS

319505 Statement A :
If one component of a solution obeys Raoult’s law over a certain range of composition, the other component will not obey Henry’s law in that range.
Statement B :
Raoult’s law is a special case of Henry’s law.

1 Statement A is correct but Statement B is incorrect
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
CHXII02:SOLUTIONS

319506 Moles of \(\mathrm{N}_{2}=0.4\) and moles of \(\mathrm{O}_{2}=0.1\) find \({{\rm{p}}_{{{\rm{N}}_{\rm{2}}}}}\) (Partial pressure) \(=\) ? at atmospheric pressure

1 \(0.2 \mathrm{~atm}\)
2 \(0.8 \mathrm{~atm}\)
3 \(0.6 \mathrm{~atm}\)
4 \(0.4 \mathrm{~atm}\)
CHXII02:SOLUTIONS

319507 The correct option for the value of vapour pressure of a solution at \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) with benzene to octane in molar ratio \({\rm{3:2}}\) is :
[At \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) vapour pressure of pure benzene is 280 mm Hg and that of pure octane is 420 mm Hg. Assume Ideal gas]

1 168 mm of Hg
2 336 mm of Hg
3 350 mm of Hg
4 160 mm of Hg
CHXII02:SOLUTIONS

319508 An aqueous solution containing 28% by mass of a liquid A (MW = 140) has a vapour pressure of 160 mm at \({\rm{37^\circ C}}\). The vapour pressure of the pure liquid A is (The vapour pressure of water at \({\rm{37^\circ C}}\) is 150 mm)

1 360 mm of Hg
2 300 mm of Hg
3 250 mm of Hg
4 400 mm of Hg
CHXII02:SOLUTIONS

319509 A solution is prepared containing a 2:1 mol ratio of dibromoethane \(\left( {{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\) and dibromopropene \(\left( {{{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\). What is total vapour pressure of the solution assuming ideal behaviour?
\({\rm{Vapour}}\,\,{\rm{pressure}}\,\,\,\,\,\,\,\left( {{\rm{mm}}\,\,{\rm{Hg}}} \right)\)
\({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{173}}\)
\({{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{127}}\)

1 300 mm Hg
2 142 mm Hg
3 150 mm Hg
4 158 mm Hg
CHXII02:SOLUTIONS

319505 Statement A :
If one component of a solution obeys Raoult’s law over a certain range of composition, the other component will not obey Henry’s law in that range.
Statement B :
Raoult’s law is a special case of Henry’s law.

1 Statement A is correct but Statement B is incorrect
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
CHXII02:SOLUTIONS

319506 Moles of \(\mathrm{N}_{2}=0.4\) and moles of \(\mathrm{O}_{2}=0.1\) find \({{\rm{p}}_{{{\rm{N}}_{\rm{2}}}}}\) (Partial pressure) \(=\) ? at atmospheric pressure

1 \(0.2 \mathrm{~atm}\)
2 \(0.8 \mathrm{~atm}\)
3 \(0.6 \mathrm{~atm}\)
4 \(0.4 \mathrm{~atm}\)
CHXII02:SOLUTIONS

319507 The correct option for the value of vapour pressure of a solution at \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) with benzene to octane in molar ratio \({\rm{3:2}}\) is :
[At \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) vapour pressure of pure benzene is 280 mm Hg and that of pure octane is 420 mm Hg. Assume Ideal gas]

1 168 mm of Hg
2 336 mm of Hg
3 350 mm of Hg
4 160 mm of Hg
CHXII02:SOLUTIONS

319508 An aqueous solution containing 28% by mass of a liquid A (MW = 140) has a vapour pressure of 160 mm at \({\rm{37^\circ C}}\). The vapour pressure of the pure liquid A is (The vapour pressure of water at \({\rm{37^\circ C}}\) is 150 mm)

1 360 mm of Hg
2 300 mm of Hg
3 250 mm of Hg
4 400 mm of Hg
CHXII02:SOLUTIONS

319509 A solution is prepared containing a 2:1 mol ratio of dibromoethane \(\left( {{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\) and dibromopropene \(\left( {{{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\). What is total vapour pressure of the solution assuming ideal behaviour?
\({\rm{Vapour}}\,\,{\rm{pressure}}\,\,\,\,\,\,\,\left( {{\rm{mm}}\,\,{\rm{Hg}}} \right)\)
\({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{173}}\)
\({{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{127}}\)

1 300 mm Hg
2 142 mm Hg
3 150 mm Hg
4 158 mm Hg
CHXII02:SOLUTIONS

319505 Statement A :
If one component of a solution obeys Raoult’s law over a certain range of composition, the other component will not obey Henry’s law in that range.
Statement B :
Raoult’s law is a special case of Henry’s law.

1 Statement A is correct but Statement B is incorrect
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
CHXII02:SOLUTIONS

319506 Moles of \(\mathrm{N}_{2}=0.4\) and moles of \(\mathrm{O}_{2}=0.1\) find \({{\rm{p}}_{{{\rm{N}}_{\rm{2}}}}}\) (Partial pressure) \(=\) ? at atmospheric pressure

1 \(0.2 \mathrm{~atm}\)
2 \(0.8 \mathrm{~atm}\)
3 \(0.6 \mathrm{~atm}\)
4 \(0.4 \mathrm{~atm}\)
CHXII02:SOLUTIONS

319507 The correct option for the value of vapour pressure of a solution at \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) with benzene to octane in molar ratio \({\rm{3:2}}\) is :
[At \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) vapour pressure of pure benzene is 280 mm Hg and that of pure octane is 420 mm Hg. Assume Ideal gas]

1 168 mm of Hg
2 336 mm of Hg
3 350 mm of Hg
4 160 mm of Hg
CHXII02:SOLUTIONS

319508 An aqueous solution containing 28% by mass of a liquid A (MW = 140) has a vapour pressure of 160 mm at \({\rm{37^\circ C}}\). The vapour pressure of the pure liquid A is (The vapour pressure of water at \({\rm{37^\circ C}}\) is 150 mm)

1 360 mm of Hg
2 300 mm of Hg
3 250 mm of Hg
4 400 mm of Hg
CHXII02:SOLUTIONS

319509 A solution is prepared containing a 2:1 mol ratio of dibromoethane \(\left( {{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\) and dibromopropene \(\left( {{{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\). What is total vapour pressure of the solution assuming ideal behaviour?
\({\rm{Vapour}}\,\,{\rm{pressure}}\,\,\,\,\,\,\,\left( {{\rm{mm}}\,\,{\rm{Hg}}} \right)\)
\({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{173}}\)
\({{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{127}}\)

1 300 mm Hg
2 142 mm Hg
3 150 mm Hg
4 158 mm Hg
CHXII02:SOLUTIONS

319505 Statement A :
If one component of a solution obeys Raoult’s law over a certain range of composition, the other component will not obey Henry’s law in that range.
Statement B :
Raoult’s law is a special case of Henry’s law.

1 Statement A is correct but Statement B is incorrect
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
CHXII02:SOLUTIONS

319506 Moles of \(\mathrm{N}_{2}=0.4\) and moles of \(\mathrm{O}_{2}=0.1\) find \({{\rm{p}}_{{{\rm{N}}_{\rm{2}}}}}\) (Partial pressure) \(=\) ? at atmospheric pressure

1 \(0.2 \mathrm{~atm}\)
2 \(0.8 \mathrm{~atm}\)
3 \(0.6 \mathrm{~atm}\)
4 \(0.4 \mathrm{~atm}\)
CHXII02:SOLUTIONS

319507 The correct option for the value of vapour pressure of a solution at \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) with benzene to octane in molar ratio \({\rm{3:2}}\) is :
[At \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) vapour pressure of pure benzene is 280 mm Hg and that of pure octane is 420 mm Hg. Assume Ideal gas]

1 168 mm of Hg
2 336 mm of Hg
3 350 mm of Hg
4 160 mm of Hg
CHXII02:SOLUTIONS

319508 An aqueous solution containing 28% by mass of a liquid A (MW = 140) has a vapour pressure of 160 mm at \({\rm{37^\circ C}}\). The vapour pressure of the pure liquid A is (The vapour pressure of water at \({\rm{37^\circ C}}\) is 150 mm)

1 360 mm of Hg
2 300 mm of Hg
3 250 mm of Hg
4 400 mm of Hg
CHXII02:SOLUTIONS

319509 A solution is prepared containing a 2:1 mol ratio of dibromoethane \(\left( {{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\) and dibromopropene \(\left( {{{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\). What is total vapour pressure of the solution assuming ideal behaviour?
\({\rm{Vapour}}\,\,{\rm{pressure}}\,\,\,\,\,\,\,\left( {{\rm{mm}}\,\,{\rm{Hg}}} \right)\)
\({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{173}}\)
\({{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{127}}\)

1 300 mm Hg
2 142 mm Hg
3 150 mm Hg
4 158 mm Hg
CHXII02:SOLUTIONS

319505 Statement A :
If one component of a solution obeys Raoult’s law over a certain range of composition, the other component will not obey Henry’s law in that range.
Statement B :
Raoult’s law is a special case of Henry’s law.

1 Statement A is correct but Statement B is incorrect
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
CHXII02:SOLUTIONS

319506 Moles of \(\mathrm{N}_{2}=0.4\) and moles of \(\mathrm{O}_{2}=0.1\) find \({{\rm{p}}_{{{\rm{N}}_{\rm{2}}}}}\) (Partial pressure) \(=\) ? at atmospheric pressure

1 \(0.2 \mathrm{~atm}\)
2 \(0.8 \mathrm{~atm}\)
3 \(0.6 \mathrm{~atm}\)
4 \(0.4 \mathrm{~atm}\)
CHXII02:SOLUTIONS

319507 The correct option for the value of vapour pressure of a solution at \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) with benzene to octane in molar ratio \({\rm{3:2}}\) is :
[At \({\rm{4}}{{\rm{5}}^{\rm{^\circ }}}{\rm{C}}\) vapour pressure of pure benzene is 280 mm Hg and that of pure octane is 420 mm Hg. Assume Ideal gas]

1 168 mm of Hg
2 336 mm of Hg
3 350 mm of Hg
4 160 mm of Hg
CHXII02:SOLUTIONS

319508 An aqueous solution containing 28% by mass of a liquid A (MW = 140) has a vapour pressure of 160 mm at \({\rm{37^\circ C}}\). The vapour pressure of the pure liquid A is (The vapour pressure of water at \({\rm{37^\circ C}}\) is 150 mm)

1 360 mm of Hg
2 300 mm of Hg
3 250 mm of Hg
4 400 mm of Hg
CHXII02:SOLUTIONS

319509 A solution is prepared containing a 2:1 mol ratio of dibromoethane \(\left( {{{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\) and dibromopropene \(\left( {{{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}} \right)\). What is total vapour pressure of the solution assuming ideal behaviour?
\({\rm{Vapour}}\,\,{\rm{pressure}}\,\,\,\,\,\,\,\left( {{\rm{mm}}\,\,{\rm{Hg}}} \right)\)
\({{\rm{C}}_{\rm{2}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{173}}\)
\({{\rm{C}}_{\rm{3}}}{{\rm{H}}_{\rm{4}}}{\rm{B}}{{\rm{r}}_{\rm{2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\rm{127}}\)

1 300 mm Hg
2 142 mm Hg
3 150 mm Hg
4 158 mm Hg