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AP ECET
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Chemistry
List of top Chemistry Questions on Chemical Kinetics asked in AP ECET
The half-life periods of a first order reaction at $300\, K$ and $400\, K$ are $50\, s$ and $10\, s$ respectively. The activation energy of the reaction in $kJ \; mol^{-1}$ is (log 5 = 0.70)
AP ECET - 2019
AP ECET
Chemistry
Chemical Kinetics
The rate constants for a reaction at $400\, K$ and $500\, K$ are $2.60 \times 10^{-5} s ^{-1}$ and $2.60 \times 10^{-3} s ^{-1}$ respectively. The activation energy of the reaction in $kJ\, mol ^{-1}$ is
AP ECET - 2019
AP ECET
Chemistry
Chemical Kinetics
Thermal decomposition of $HCOOH$ is a first order reaction and the rate constant at T(K) is $4.606 \times 10^{-3}\, s^{-1}$. The time required to decompose $90\%$ of initial quantity of $HCOOH$ at $T(K)$ in seconds is
AP ECET - 2018
AP ECET
Chemistry
Chemical Kinetics
The rate constant of a reaction at temperature 200 K is 10 times less than the rate constant at 400 K. What is the activation energy $ E_a$ of the reaction? (R = Gas constant)
AP ECET - 2003
AP ECET
Chemistry
Chemical Kinetics