Two beakers of capacity 500 mL were taken. One of these beakers, labelled as " A ", was
filled with 400 mL water whereas the beaker labelled " B ' was filled with 400 mL of 2 M solution of NaCl . At the same temperature, both the beakers were placed in closed containers of same material and same capacity as shown in figure:
At a given temperature, which of the following statement is correct about the vapour pressure of pure water and that of NaCl solution?
Text Solution
Verified by ExpertsA
When salt is added to water to make the solution, the vapour pressure of solution decreases.
This is due to decrease in surface covered by solvent molecule which lead to decrease in number of solvent molecule escaping from the surface corresponding to pure solvent.
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