Question

Do solids and liquids exert a vapour pressure?

Answer 1

I am not entirely clear as to what you are asking........

Explanation:

Liquids (and some solids) do exert an `"equilibrium vapour pressure"`...... i.e.

`"Liquid "rightleftharpoons" Gas"`

The extent of the equilibrium is a function of temperature, and at the liquid's `"normal boiling point"`, the vapour pressure of the solution is `1*atm`. At temperatures LESS than the normal boiling point, a vapour pressure will still be exerted. For water, the vapour pressures are extensively tabulated.......and of course must be accounted for when we collect a volume of gas by water displacement.

Sometimes, the vapour pressures are reported in `"mm Hg"`, and thus this measurement can be subtracted from the atmospheric pressure of `"760 mm Hg"`,