Explain why on addition of 1 mol of NaCl to

hyprkathknmk 2022-05-10 Answered
Explain why on addition of 1 mol of NaCl to 1 litre of water, the boiling point of water increases, while addition of 1 mol of methyl alcohol to one litre of water decreases its boiling point.
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Answers (1)

ele5ph1a7jl1
Answered 2022-05-11 Author has 21 answers
NaCl is a non-volatile solute, therefore, addition of NaCl to water lowers the vapour pressure of water. As a result boiling point of water increases
On the other hand, methyl alcohol is more volatile than water, therefore its addition increases the total vapour pressure over the solution. As a result, boiling point of water decreases.
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