According to the Langmuir adsorption isotherm defined as , what does the specific mathematical inter — Surface Chemistry Chemistry Question
Question
According to the Langmuir adsorption isotherm defined as $x/m = aP/(1+bP)$, what does the specific mathematical intercept evaluate to when plotting $m/x$ on the y-axis against $1/P$ on the x-axis?
Answer: B
💡 Solution & Explanation
Taking the reciprocal of the Langmuir equation: $m/x = (1+bP)/(aP) \implies m/x = (1/a)(1/P) + b/a$. In a linear plot of $m/x$ vs $1/P$, the slope is $1/a$ and the y-intercept is strictly $b/a$.
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