What does not change on changing temperature - Vidyadip

MCQ

What does not change on changing temperature

A
Mole fraction
B
Normality
C
Molality
✓
Both $(a)$ and $ (c)$

✓

Answer

Correct option: D.

Both $(a)$ and $ (c)$

d
Molality is given by $m =$

$\frac{ n _{\text {solute }}}{ W _{\text {solvent }}} W _{\text {solvent }}$ is the mass of solvent which is independent of temperature.

Normality is given by $N =\frac{ n _{\text {eq }} \text { of solvent }}{ V _{\text {solution }}}$

Here, it is dependent on volume which is temperature-dependent.

Mole fraction is dependent on the amount of substance which is temperature independe:

Therefore, Molality and mole fraction are temperature independent.

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