JEE Main & Advanced
Chemistry
Solutions / विलयन
Question Bank
Lowering of vapour pressure
question_answer
The vapour pressure of water at \[{{20}^{o}}C\] is 17.54 mm. When 20g of a non-ionic, substance is dissolved in 100g of water, the vapour pressure is lowered by 0.30 mm. What is the molecular weight of the substances [UPSEAT 2001]