Chemistry - Liquid Solution Question with Solution | TestHub

ChemistryLiquid SolutionRaoult’s law, ideal/nonideal solutions and azeotropesMedium2 minQB
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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 Fig. 2.2. At a given temperature, which of the following statement is correct about the vapour pressure of pure water and that of NaCl solution.

Original solutions-22-stem diagram

Options:

Answer:
A
Solution:

The dissolved NaCl lowers water's escaping tendency, so the vapour pressure over pure water A exceeds that over solution B.

Stream:JEESubject:ChemistryTopic:Liquid SolutionSubtopic:Raoult’s law, ideal/nonideal solutions and azeotropes
⏱ 2mℹ️ Source: QB

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