Solubility

The widely used method for desalination of sea water to meet the requirement of potable water is

Fish does not always grow in warm water so well as in cold water. Why ?

At a given temperature, the osmotic pressure of a concentrated solution of a substance _____.

Henry's law constant for the molality of methane in benzene at $298 \mathrm{K}$is $4.27\times {10}^5 \mathrm{mm} \mathrm{Hg}$. Calculate the solubility of methane in benzene at $298 \mathrm{K}$ under $760 \mathrm{mm} \mathrm{Hg}$.

Based on solute-solvent interactions, arrange the following in order of increasing solubility in n-octane and explain. Cyclohexane, $\mathrm{KCl}, {\mathrm{CH}}_3\mathrm{OH}, {\mathrm{CH}}_3\mathrm{CN}$.

${\mathrm{H}}_2\mathrm{S}$, a toxic gas with a rotten egg-like smell is used for the qualitative analysis. If the solubility of ${\mathrm{H}}_2\mathrm{S}$ in water at $\mathrm{STP}$ is $0.195 \mathrm{m}$, Calculate Henry's law constant. 

If osmotic pressure of a solution is $1 \mathrm{atm}$ at ${27}^{°} \mathrm{C},$ then at ${327}^{°} \mathrm{C},$ the osmotic pressure is