The mole fraction of ethyl alcohol in its solution with methyl alcohol is 0.80. The vapour pressure of ethyl alcohol at the temperature of the solution is 40mm Hg. What is its vapour pressure in solution, if the solution is ideal?

The mole fraction of ethyl alcohol in its solution with methyl alcohol

1.	The mole fraction of ethyl alcohol in its solution with methyl alcohol is 0.80. The vapour pressure of ethyl alcohol at the temperature of the solution is 40mm Hg. What is its vapour pressure in solution, if the solution is ideal?
Answer» By roult's law it is = X × p = .8 × 40 mm Hg = 32 mm Hg