The solubility of a gas in a liquid is directly proportional to the pressure of the gas over the solution. Identify the law for this statement.

The statement "The mass of a gas dissolved in a given mass of a solvent at any temperature is proportional to the pressure of the gas above the solvent" is

State Henry's law and explain it. Also,mention its applications.

Identify the reason for the solubility of polar solute in polar solvent from the following.

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

Gas	$K_{H} \ (kbar)$
$\alpha$	$50$
$\beta$	$2$
$\gamma$	$2 \times 10^{-5}$
$\delta$	$0.5$

(Density of water $= 10^{3} \ kg \ m^{-3}$ at $298 \ K$). This table implies that:

Explain the equilibrium in soda water and explain it using Henry's law.