Question

Which of the following is dependent on temperature?

Options

• Molality

• Molarity

• Mole fraction

• Weight percentage

Answer 1

Molarity

Explanation:

Molarity (mol/L) depends on volume, and the volume of liquids changes with temperature (expansion or contraction), so molarity is temperature-dependent. Molality (mol/kg of solvent) depends only on mass, which does not change with temperature, so molality is temperature independent. Mole fraction and weight percentage are also ratios based on mass or moles, so they are independent of temperature.