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The relative lowering of the vapour pressure is equal to the ratio between the number of
For an ideal solution with ${{P}_{A}}>{{P}_{B}},$which of the following is true
If ${{P}_{o}}$and ${{P}_{s}}$are the vapour pressure of solvent and solution respectively and ${{N}_{1}}$and ${{N}_{2}}$are the mole of solute and solvent then
According to Raoult’s law, the relative lowering of vapour pressure of solution is equal to the
An ideal solution is formed when its components
Which one of the statements given below concerning properties of solutions, describes a colligative effect
Formation of a solution from two components can be considered as(i) Pure solvent $\to $ separated solvent molecules $\Delta {{H}_{1}}$(ii) Pure solute $\to $ separated solute molecules $\Delta {{H}_{2}}$(iii) Separated solvent and solute molecules $\to $ solution $\Delta {{H}_{3}}$ Solution so formed will be ideal if
A solution is obtained by dissolving 12 g of urea (mol. wt. 60) in litre of water. Another solution is obtained by dissolving 68.4 g of cane sugar (mol. wt. 342) in a litre of water at are the same temperature. The lowering of vapour pressure in the first solution is
A solution containing 30 g of non-volatile solute in exactly 90 g water has a vapour pressure of 21.185 mm Hg at ${{25}^{o}}C$. Further 18 g of water is then added to the solution. The resulting solution has a vapour pressure of $22.15\ mm\ Hg$ at ${{25}^{o}}C$, Calcualte the molecular weight of the solute
60 gm of urea (mol. wt. 60) was dissolved in 9.9 mols of water. If the vapour pressure of pure water is Po, the vapour of solutions is

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