Which of the following units is useful in relating concentration of solution with its vapour pressure?
Which of the following units is useful in relating concentration of solution with its vapour pressure?
Mole fraction
Parts per million
Mass percentage
Molality
Solution
According to Raoult's law, relative lowering of vapour pressure is directly proportional to mole fraction of solute. So, mole fraction is used in relating concentration of solution with its vapour pressure.