Define the following modes of expressing the concentration of a solution: Mass percentage,Molarity,Molality,and Mole fraction. Which of these modes are independent of temperature and why?

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) $1$. Mass percentage: The mass of the solute in grams present in $100 \ g$ of the solution.
$2$. Molarity $(M)$: The number of moles of solute dissolved in $1 \ L$ of solution.
$3$. Molality $(m)$: The number of moles of solute dissolved in $1 \ kg$ of solvent.
$4$. Mole fraction $(x)$: The ratio of the number of moles of one component to the total number of moles of all components in the solution.
Modes independent of temperature are Molality and Mole fraction.
Reason: These modes are defined in terms of mass (or moles),which do not change with temperature. In contrast,Molarity involves volume,which changes with temperature due to thermal expansion or contraction.

Explore More

Similar Questions

If a substance $A$ dissolves in a solution of a mixture of $B$ and $C$ with their respective number of moles as $n_A, n_B$ and $n_C$,the mole fraction of $C$ in the solution is:

$100 \ mL$ of $\frac{M}{10} \ Ca(NO_3)_2$ and $200 \ mL$ of $\frac{M}{10} \ KNO_3$ solutions are mixed. What is the normality of the resulting solution with respect to $NO_3^{-}$ ions (in $N$)?

The density of a $3 \, M \, NaCl$ solution is $1.25 \, g \, mL^{-1}$. Calculate the molality of the solution. (in $, m$)

Which of the following modes of expressing concentration is independent of temperature?

Which of the following concentration terms is dependent on temperature?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo