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The rate constant of a zero order reaction is $2.0\times 10^{-2} moI L^{-1}S^{-1}.$ If the concentration of the reactant after $25$ second is $0.5M$ . What is the initial concentration?
Option: 1
$0.5M$

Option: 2
$1.25M$

Option: 3
$12.5M$

Option: 4
$1.0M$

Answers (1)

best_answer

For zero order reaction, C₀−C_t=Kt
if C_t= 0.5M, t = 25sec, K=2×10^-2

then C₀= 1.0M

Posted by

Devendra Khairwa

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