Variation of ${\mathrm{K}}_{\mathrm{H}}$ (Henry's law constant) with temperature T is shown by following graphs I — IV.

Correct representation is

Partial pressure, $\mathrm{p}={\mathrm{K}}_{\mathrm{H}}\mathrm{\chi }$

If temperature is lowered, solubility of gases increases at a given pressure. Thus, ${\mathrm{K}}_{\mathrm{H}}$ increases with increase in temperature. It is due to this reason that aquatic species are more comfortable in cold water rather than in warm water.