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' x ' g of NaCl is added to water in a beaker with a lid. The temperature of the system is raised from 1^ C to 25^ C . 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]

Correct answer

1

Step-by-step solution

1^ C Water [ decreases ] Volume 4^ C Water [ thermal expansion ] Volume increases 25^ C Water Water Molarity = n _ solute ( Volume of solution )_ Hence 1^ C [ increases ] molarity 4^ C [ decreases ] molarity 25^ C

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