Question

with increase in vapour pressure, does a solvent become more or less volatile? explain with reason please...

Answer 1

in order for vapor pressure to increase, there has to be an increase in the number of molecules of the solvent evaporating.

Answer 2

so if vapour pressure increases, the solvent is more volatile?

Answer 3

@JFraser

Answer 4

They are inversely related. The volatility of a liquid increases with decreasing vapor pressure, as it provides more reversible effect on liquid molecules, so less liquid molecules are able to escape. Conversely, the volatility of liquid increases with decreasing vapor pressure, as it provides less reversible effect on liquid molecules, allowing more to escape.

Answer 5

wait, are you asking about the vapor pressure of the SOLVENT itself, or the vapor pressure of the atmosphere ABOVE the solvent, in which case hashsam is correct.