Which of the aqueous equimolal solution will have its vapour pressure near to solvent ?
A.
$${\text{Urea}}$$
B.
$$Ba{\left( {N{O_3}} \right)_2}$$
C.
$$NaN{O_3}$$
D.
$$Al{\left( {N{O_3}} \right)_3}$$
Answer :
$${\text{Urea}}$$
Solution :
$$\frac{{{p^ \circ } - {p_s}}}{{{p^ \circ }}} = \frac{n}{{n + N}}i;$$
$$\Delta P$$ is minimum since $$i= 1$$ for urea. Thus, urea solution will have its vapour pressure closer to solvent.
Releted MCQ Question on Physical Chemistry >> Solutions
Releted Question 1
An azeotropic solution of two liquids has boiling point lower than either of them when it