Vapour pressure of water at `20^(@)C` is 17.5 mm of Hg and lowering of vapour pressure of a sugar solution is 0.061 mm of Hg. Calculate .
(i) relative lowering of vapour pressure .
(ii) vapour pressure of the solution .
(iii) mole fraction of sugar and water .

Explanation

To solve the problem, we will follow these steps:

### Given Data:
- Vapour pressure of pure water, \( P_0 = 17.5 \, \text{mm of Hg} \)
- Lowering of vapour pressure of the sugar solution, \( \Delta P = 0.061 \, \text{mm of Hg} \)

### (i) Calculate Relative Lowering of Vapour Pressure

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