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CGP EDU Academic Team
Published on: August 13, 2026
Rate of reaction varies with nature, physical states of reactant, concentration of reactant, temperature, exposure to light & catalyst, whereas rate constant varies with temperature & catalyst only. Dependency of rate constant on temperature is given by Arhenius equation
K = Ae –Ea/RT .
(i) In 1 st order reaction, unit of Pre-exponential factor 'A' is :
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CHECK THE SOLUTION.
(i)
Sol. 
(ii)
Sol. K = A
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