Q. The quantity which changes with temperature is :

Quantity Changing with Temperature | JEE Mains PYQ | Mole Concept

Q. The quantity which changes with temperature is :

A. Molality

B. Molarity

C. Mole fraction

D. Mass percentage

Explanation

Step 1: Understand temperature effect

On changing temperature, the volume of solution changes due to expansion or contraction.

Step 2: Analyze each term

Molality, mole fraction and mass percentage depend on mass, which does not change with temperature.

Molarity depends on volume of solution, which changes with temperature.

Correct Answer = Molarity

Previous Year Questions – Mole Concept

9.3 g of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced if the reaction is 100% completed is ______ × 10⁻¹ g.

Volume of 3 M NaOH (formula weight 40 g mol⁻¹) which can be prepared from 84 g of NaOH is ______ × 10⁻¹ dm³.

A sample of CaCO₃ and MgCO₃ weighing 2.21 g is ignited to constant weight of 1.152 g. The composition of the mixture is :

The molarity of 1 L orthophosphoric acid (H₃PO₄) having 70% purity by weight (specific gravity 1.54 g cm⁻³) is ______ M.

Number of moles of methane required to produce 22 g CO₂(g) after combustion is x × 10⁻2 moles. The value of x is ______.

JEE Mains Full Study Material

Updated for JEE Main 2026: This PYQ is important for JEE Mains, JEE Advanced and other competitive exams. Practice more questions from this chapter.