319162 If boiling point of urea solution is 100. \({\rm{1}}{{\rm{8}}^{\rm{^\circ }}}{\rm{C}}\) and \({{\rm{K}}_{\rm{b}}}\) for water is \({\rm{0}}{\rm{.512}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\), molality of solution is (Boiling point of water \({\rm{ = 10}}{{\rm{0}}^{\rm{^\circ }}}{\rm{C}}\))

319163 Assertion :
Water boils at \(373 \mathrm{~K}\) as the vapour pressure at this temperature becomes equal toatmospheric pressure.
Reason :
Vapour pressure of water is less than 1.013 bar at \(373 \mathrm{~K}\).

319164 Assertion :
The boiling point of \(0.1 \mathrm{M}\) urea solution is less than that of \(0.1 \mathrm{M} \mathrm{KCl}\) solution.
Reason :
Elevation of boiling point is directly proportional to the number of species present in the solution.

319165 Assertion :
Camphor is used as a solvent in the determination of molecular masses of naphthalene, anthracene, etc.
Reason :
Camphor has high molal elevation constant.

319162 If boiling point of urea solution is 100. \({\rm{1}}{{\rm{8}}^{\rm{^\circ }}}{\rm{C}}\) and \({{\rm{K}}_{\rm{b}}}\) for water is \({\rm{0}}{\rm{.512}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\), molality of solution is (Boiling point of water \({\rm{ = 10}}{{\rm{0}}^{\rm{^\circ }}}{\rm{C}}\))

319163 Assertion :
Water boils at \(373 \mathrm{~K}\) as the vapour pressure at this temperature becomes equal toatmospheric pressure.
Reason :
Vapour pressure of water is less than 1.013 bar at \(373 \mathrm{~K}\).

319164 Assertion :
The boiling point of \(0.1 \mathrm{M}\) urea solution is less than that of \(0.1 \mathrm{M} \mathrm{KCl}\) solution.
Reason :
Elevation of boiling point is directly proportional to the number of species present in the solution.

319165 Assertion :
Camphor is used as a solvent in the determination of molecular masses of naphthalene, anthracene, etc.
Reason :
Camphor has high molal elevation constant.

319162 If boiling point of urea solution is 100. \({\rm{1}}{{\rm{8}}^{\rm{^\circ }}}{\rm{C}}\) and \({{\rm{K}}_{\rm{b}}}\) for water is \({\rm{0}}{\rm{.512}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\), molality of solution is (Boiling point of water \({\rm{ = 10}}{{\rm{0}}^{\rm{^\circ }}}{\rm{C}}\))

319163 Assertion :
Water boils at \(373 \mathrm{~K}\) as the vapour pressure at this temperature becomes equal toatmospheric pressure.
Reason :
Vapour pressure of water is less than 1.013 bar at \(373 \mathrm{~K}\).

319164 Assertion :
The boiling point of \(0.1 \mathrm{M}\) urea solution is less than that of \(0.1 \mathrm{M} \mathrm{KCl}\) solution.
Reason :
Elevation of boiling point is directly proportional to the number of species present in the solution.

319165 Assertion :
Camphor is used as a solvent in the determination of molecular masses of naphthalene, anthracene, etc.
Reason :
Camphor has high molal elevation constant.

319162 If boiling point of urea solution is 100. \({\rm{1}}{{\rm{8}}^{\rm{^\circ }}}{\rm{C}}\) and \({{\rm{K}}_{\rm{b}}}\) for water is \({\rm{0}}{\rm{.512}}{\mkern 1mu} {\mkern 1mu} {\rm{K}}{\mkern 1mu} {\mkern 1mu} {\rm{kg}}{\mkern 1mu} {\mkern 1mu} {\rm{mo}}{{\rm{l}}^{{\rm{ - 1}}}}\), molality of solution is (Boiling point of water \({\rm{ = 10}}{{\rm{0}}^{\rm{^\circ }}}{\rm{C}}\))

319163 Assertion :
Water boils at \(373 \mathrm{~K}\) as the vapour pressure at this temperature becomes equal toatmospheric pressure.
Reason :
Vapour pressure of water is less than 1.013 bar at \(373 \mathrm{~K}\).

319164 Assertion :
The boiling point of \(0.1 \mathrm{M}\) urea solution is less than that of \(0.1 \mathrm{M} \mathrm{KCl}\) solution.
Reason :
Elevation of boiling point is directly proportional to the number of species present in the solution.

319165 Assertion :
Camphor is used as a solvent in the determination of molecular masses of naphthalene, anthracene, etc.
Reason :
Camphor has high molal elevation constant.