Question

Out of molarity (M), molality (m), formality (F) and mole fraction (x) those independent of temperature are :
(A) M,m (B) F,x (C) m,x (D) M,x
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Answer 1

the answer is option C .

Answer 2

Answer:

The correct answer is C) m,x .

Explanation:

Molality is the ratio of moles of solute by kg of solvent.

m= $\frac{moles of solute}{kg of solvent}$

Mole fraction is the ratio of moles of solute /solvent by total moles of solution.

$mole_{solute}$= $\frac{moles of solute}{Total moles of solution}$

$mole_{solvent}$= $\frac{moles of solvent}{Total moles of solution}$

Both molality and mole fraction are independent of temperature as the values of this does not depend on volume.

Whereas, formality and molarity depend on volume and thus are dependent on temperature.

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