Question

For which of the following parameters the structural isomers $C_2{H}_{5}OH$ and $C{H}_{3}OC{H}_3$ would be expected to have the same values?

• A. Heat of vaporisation
• B. Vapour pressure at the same temperature
• C. Boiling points
• D. Gaseous densities at the same temperature and pressure

Answer 1

The correct option is D Gaseous densities at the same temperature and pressure

Density of gas = $\frac{Mol.wt.\times P}{RT}$
Since both isomers have same molecular mass and hence their densities will be same at same temperature and pressure.