MCQ
A solution contains $KCl$ in water. It is heated continuously and vapour formed is removed continuously. Vapour pressure of solution will be
- ✓Greater than earlier
- BSame as earlier
- CLower than earlier
- DNone
✓
Answer
Correct option: A.
Greater than earlier
a
$\frac{4}{3}=\frac{1\left(1-\mathrm{X}_{\mathrm{B}}\right)}{3 \mathrm{X}_{\mathrm{B}}}$
$\frac{4}{3}=\frac{1\left(1-\mathrm{X}_{\mathrm{B}}\right)}{3 \mathrm{X}_{\mathrm{B}}}$
$12\, \mathrm{X}_{\mathrm{B}}=3-3 \mathrm{X}_{\mathrm{B}}$
$\mathrm{X}_{\mathrm{B}}=\frac{3}{15}=\frac{1}{5}$
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