Question
Which of the following graphs would yield a straight line?
A.
$$\frac{x}{m}\,{\text{vs}}\,\,p$$
B.
$$\log \,\frac{x}{m}\,\,{\text{vs}}\,\,p$$
C.
$$\frac{x}{m}\,{\text{vs}}\,\,\log \,p$$
D.
$$\log \,\frac{x}{m}\,\,{\text{vs}}\,\,\log \,p$$
Answer :
$$\log \,\frac{x}{m}\,\,{\text{vs}}\,\,\log \,p$$
Solution :
Equation of straight line for adsorption is $$\log \,\frac{x}{m} = \log \,k + \frac{1}{n}\,\log \,p.$$ Thus, plot between $$\log \,\frac{x}{m}\,\,{\text{vs}}\,\,\log \,p$$ gives a straight line.