Question

Substances X and Y are both nonpolar. If the volatility of X is higher than that of Y, what is the best explanation?
X’s molecules experience stronger dipole-dipole forces than Y’s molecules.
Y’s molecules experience stronger dipole-dipole forces than X’s molecules.
X’s molecules experience stronger London dispersion forces than Y’s molecules.
Y’s molecules experience stronger London dispersion forces than X’s molecules. @somy @sweetburger

Answer 1

I believe a higher volatility means a higher vapour pressure and if you bost substances are non polar you can eliminate both answer A and B because they dont experience dipole-dipole forces

Answer 2

and if both*

Answer 3

it only one answer

Answer 4

I believe D. would be your answer this is because the the stronger the inter molecular forces the more the vapor pressure is decreased