Vapour pressure of chloroform (CHCl3β) and dichloromethane (CH2βCl2β) at 25oC are 200 mm Hg and 415 mm Hg respectively. Vapour pressure of the solution obtained by mixing 25.5 g of CHCl3β and 40 g of CH2βCl2β at the same temperature will be:
[Molecular mass of CHCl3β=119.5Β g/mol and molecular mass of CH2βCl2β=85Β g/mol]