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 ______.
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