Which of the following graph correctly represents the plots of \(K_H\) at 1 bar gases in water versus temperature?
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For gases in water, the temperature dependence of Henry’s Law constant shows an initial decrease followed by an increase in solubility at higher temperatures. This behavior varies across different gases.
As temperature rises, solubility initially declines before increasing. Consequently, \( K_H \) initially rises, then falls. At intermediate temperatures, \( K_H \) values are ordered as:
\[
\text{He}>\text{N}_2>\text{CH}_4
\]
