In a nearly saturated solution, the solutility increases with increase in temperature, then change in enthalpy of solution is

+ve

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-ve

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+ve or –ve

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Solution

The correct option is A +ve
Solubility increases with temperature $Δ$ H = +ve (endothermic)

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In a nearly saturated solution, the solubility increases with increase in temperature.

Δ H

Δ S

\begin{matrix} List - I & List - II (P) & Chloroform-methyl alcohol & (1) & Enthalpy change +ve (Q) & Methyl alcohol-ethyl alcohol & (2) & Enthalpy change -ve (R) & Ethyl alcohol-water & (3) & Entropy change +ve (S) & Water-nitric acid & (4) & Change in volume, Δ V = + v e (5) & Change in volume, Δ V = - v e \end{matrix}

Column I	Column II
A. Initial velocity > 0	P. Particle may move in +ve X direction with increasing speed
B. Initial velocity < 0	Q. Particle may move in +ve X direction with decreasing speed
C. X > 0	R. Particle may move in -ve X direction with increasing speed
D. X < 0	S. Particle may move in -ve X direction with decreasing speed

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