The solubility of $N_2$ in water at $300\; K$ and $500\;torr$ partial pressure is $0.01 \;g\; L^{−1}$. The solubility (in g L−1) at 750 torr partial pressure is :

Question

$\begin{array}{1 1}(1)0.0075 \\ (2) 0.015 \\ (3) 0.02 \\ (4) 0.005 \end{array} $