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Question
Arrhenius equation can be represented graphically as follows:
The (i) intercept and (ii) slope of the graph are:
Options
(i) ln A (ii) Ea/R
(i) A (ii) Ea
(i) ln A (ii) - Ea/R
(i) A (ii) - Ea
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Solution
(i) ln A (ii) - Ea/R
Explanation:
According to Arrhenius equations,
`k = A exp (- (Ea)/(RT))`
Taking ln on both sides
`l n k = l n A - (Ea)/(RT)`
Or `l n K = (- (Ea)/R) 1/T + l n A`
Comparing the above equations with the equation of straight line y = mx + C, we got
m = `(-Ea)/R`
C = `l n A`
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