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Q.
Concentration terms like mass percentage, ppm, mole fraction and molality do not depend on temperature. However, molarity is a function of temperature because
Solutions
Solution:
Molarity $=\frac{\text { no. of moles }}{\text { Volume of solution }( L )}$
When temperature increases the volume of the solution decreases assuming the solution is in constant pressure conditions.
$T \alpha \frac{1}{ V }$
Therefore when temperature increases volume decreases and molarity increases.
Mass percentage, ppm, mole fraction and molality are solely dependant on mass which is independent of temperature.