Select the correct statement for an ideal sol | vedclass

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(D) $1$. In an ideal solution,the intermolecular forces between solute-solute,solvent-solvent,and solute-solvent are identical. Thus,the heat of vapor

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All are correct statements.

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(D) $1$. In an ideal solution,the intermolecular forces between solute-solute,solvent-solvent,and solute-solvent are identical. Thus,the heat of vaporisation remains similar as the same forces are overcome. $2$. The entropy of a solution is higher than that of a pure solvent due to increased disorder. Therefore,the entropy change $(\Delta S)$ between the solution and its vapour is smaller than that between the pure solvent and its vapour. $3$. Due to the presence of a non-volatile solute,the vapour pressure of the solution decreases,which leads to an elevation in the boiling point compared to the pure solvent. $4$. Since all statements are scientifically accurate,the correct option is $D$.

List-$I$	List-$II$
$(A)$ Azeotrope	$(I)$ $\Delta T_b = i K_b m$
$(B)$ Henry's law	$(II)$ $p = K_H x$
$(C)$ Cryoscopic constant	$(III)$ $\Delta T_f / m$
$(D)$ Van't Hoff factor	$(IV)$ Deviation from Raoult's law
	$(V)$ $\pi = CRT$

Select the correct statement for an ideal solution of a non-volatile solute in a liquid solvent.

Similar Questions

At $300 \ K$,an ideal solution is formed by mixing $460 \ g$ of toluene with $390 \ g$ of benzene. If the vapour pressure of pure toluene and pure benzene at $300 \ K$ are $32 \ mm$ and $40 \ mm$ respectively,the mole fraction of toluene in the vapour phase is:

Match the following.

List-$I$ List-$II$

$(A)$ Azeotrope $(I)$ $\Delta T_b = i K_b m$

$(B)$ Henry's law $(II)$ $p = K_H x$

$(C)$ Cryoscopic constant $(III)$ $\Delta T_f / m$

$(D)$ Van't Hoff factor $(IV)$ Deviation from Raoult's law

$(V)$ $\pi = CRT$

The correct answer is

Calculate the freezing point in $^oC$ of an aqueous solution of urea that boils at $100.18\,^oC$. $(K_f = 1.86\, ^oC\, m^{-1}, K_b = 0.512\,^oC\, m^{-1})$

After adding a non-volatile solute, the freezing point of water decreases to $-0.186^{\circ} C$. Calculate $\Delta T_b$ if $K_f = 1.86 \text{ K kg mol}^{-1}$ and $K_b = 0.521 \text{ K kg mol}^{-1}$. (in $\text{ K}$)

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