'x' g of NaCl is added to water in a beaker with a lid. The temperature of the system is raised from — JEE Mains Chemistry Past Papers Chemistry Question
Question
'x' g of NaCl is added to water in a beaker with a lid. The temperature of the system is raised from 1ºC to 25ºC. Which out of the following plots, is best suited for the change in the molarity (M) of the solution with respect to temperature ? [Consider the solubility of NaCl remains unchanged over the temperature range]
Answer: D
💡 Solution & Explanation
Density of water increases from 1ºC to 4ºC and then decreases with increasing temperature. So volume of water/solution decreases from 1ºC to 4ºC and then increases with increasing temperature. So molarity of solution increases from 1ºC to 4ºC and then decreases with increasing temperature. | JEE(Main) 2025 | DATE : 02-04-2025 (SHIFT-2) | PAPER-1 | CHEMISTRY PAGE # 2
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