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For a zero order reaction, a plot of [R] against time t gives a straight line. What does the slope of this line equal?
Ak
Bk/2.303
Cln k
D-k
Answer & Solution
Correct answer: D. -k
1. The integrated zero order law is $[R] = -kt + [R]_0$.
2. Comparing with $y = mx + c$, slope $m = -k$.
3. The intercept is $[R]_0$.
_Source: NCERT Class 12 Chemistry Ch 3 "Chemical Kinetics", p.11_
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