Concentration terms such as mass percentage, ppm, mole fraction and molality are independent of temperature, however molarity is a function of temperature. Explain.

Explanation

Molarity of a solution is defined as the number of moles of solute dissolved in one litre of solution. Since volume depends on temperature and undergoes a change with change in temperature, the molarity will change with change in temperature. On the other hand, mass does not change with change in temperature. Mass percentage ppm, mole fraction and molality involve only mass and remain unchanged by changing temperature.