Question:
A graph of vapour pressure and temperature for three different liquids $\mathrm{X}, \mathrm{Y}$ and $\mathrm{Z}$ is shown below :
(A) $\mathrm{X}$ has higher intermolecular interactions compared to $\mathrm{Y}$.
(B) X has lower intermolecular interactions compared to $\mathrm{Y}$.
(C) $\mathrm{Z}$ has lower intermolecular interactions compared to $\mathrm{Y}$.
The correct inference(s) is/are :
Correct Option: , 3
Solution:
Order of B.P. is : $\mathrm{Z}>\mathrm{Y}>\mathrm{X}$
Order of vapour pressure $: \mathrm{Z}<\mathrm{Y}<\mathrm{X}$
order of intermolecular interaction : $\mathrm{Z}>\mathrm{Y}>\mathrm{X}$.