Adsorption of a gas follows Freundlich adsorption isotherm. In the given plot, x is the mass of the gas adsorbed on mass m of the adsorbent at pressure P. $${x \over m}$$ is proportional to :

Which one of the following is not a property of physical adsorption?

If x gram of gas is adsorbed by m gram of adsorbent at pressure P, the plot of log $${x \over m}$$ versus log P is linear. The slope of the plot is :
(n and k are constants and n > 1)

Which of the following statements about colloids is False ?