Solutions Test ...

Dry air is bubbled successively through (i) a solution, (ii) its solvent, and (iii) through $$CaCl_2$$. The lowering of vapour pressure of the solvent due to the addition of solute is equal to  

The reading of pressure gauge at bubble point is :

The reading of pressure gauge at which only vapour phase exists is

The reading of pressure gauge at which only liquid phase exists

On mixing heptane and octane from an ideal solution. At $$373 K$$, the vapour pressure of the two liquid compounds (heptane and octane) are $$105\ kPa$$ and $$45\ kPa$$ respectively. Vapour pressure of the solution obtained by mixing $$250g$$ of heptane and $$35g$$ of octane will be (molar mass of heptane $$=100$$ and octane $$=114\ g\ mol^{-1}$$)

Vapour pressure of a solution is

Which of the following is true when components forming an ideal solution are mixed?

Which pair from the following will not form an ideal solution?

Which of the following mixture shows positive deviation by ideal behaviour

$$60 \,gm$$ of Urea (Mol. wt 60) was dissolved in $$9.9$$ moles of water. If the vapour pressure of pure water is $$P_0$$ , the vapour pressure of solution is