Freundlich adsorption isotherm is given by the expression xm=kp1/n.which of the following conclusions can be drawn from this expression?
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a
when 1n=0,the adsorption is independent of pressure
b
When 1n=0, the adsorption is directly proportional to pressure.
c
When n=0,xmvs p graph is a line parallel to x - axis
d
When n=0, plot of xmvs p is a curve
answer is A.
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Detailed Solution
According to Freundlich adsorption isotherm xm∝p1n⇒xm=kp1n(a) At 1n=0this equation become xm=kp0=k Extent of adsorption is independent of pressure.(b) xm=kp10=kp∞ Hence, graph can be plotted as