JEE Main Chemistry question

Statement 1: Molality and mole fraction are not affected by temperature.

Statement 2: Molality (where = mass of solvent).

(A)Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1Correct
(B)Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1
(C)Statement 1 is True, Statement 2 is False
(D)Statement 1 is False, Statement 2 is True

Answer: (A)

Solution

Molality and mole fraction are defined purely in terms of masses/moles (not volume), so they are unaffected by temperature-induced volume changes (Statement

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Question ID VK-130641