The relative lowering in vapour pressure is proportional to the ratio of number of

Options

A. Solute molecules to solvent molecules
B. Solvent molecules to solute molecules
C. Solute molecules to the total number of molecules in solution
D. Solvent molecules to the total number of molecules in solution

Answer

C

Explanation

One mole of electron charge is equivalent to one Faraday.
Given reaction, `CaCl_(2) rarr Ca^(2+) + 2Cl^(-)`
Ca is undergoing oxidation i.e, `Ca^(2+) + 2e^(-) rarr Ca`
We can observe that 40g of Ca takes `2e^(-)` charge, So, 1 mole of Ca(40g)= 2F
Now, 100g of `Ca -= 5F`