Henry’s constant (in kbar) for four gases $\alpha$, $\beta$, $\gamma$ and $\delta$ in water at 298 K is given below :

	$\alpha$	$\beta$	$\gamma$	$\delta$
KH	50	2	2 $\times$ 10-5	0.5

(density of water = 10³ kg m^-3 at 298 K)
This table implies that :