Consider a solution of \( \mathrm{CO_2(g)} \) dissolved in water in a closed container. Which one of the following plots correctly represents variation of \( \log \) (partial pressure of \( \mathrm{CO_2} \) in vapour phase above water) [y-axis] with \( \log \) (mole fraction of \( \mathrm{CO_2} \) in water) [x-axis] at \( 25^\circ \mathrm{C} \)?
