The rate constant,the activation energy and the Arrhenius parameter of a chemical reaction at $25\,^oC$ are $3.0 \times 10^{-4}\,s^{-1}$,$104.4\,kJ\,mol^{-1}$ and $6.0 \times 10^{14}\,s^{-1}$ respectively. The value of the rate constant as $T \to \infty$ is

  • A
    $2.0 \times 10^{18}\,s^{-1}$
  • B
    $6.0 \times 10^{14}\,s^{-1}$
  • C
    Infinity
  • D
    $3.6 \times 10^{30}\,s^{-1}$

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The rate of the chemical reaction doubles for an increase of $10 \, K$ in absolute temperature from $298 \, K$. Calculate $E_{a}$.

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Activation energy of a chemical reaction can be determined by

In which of the following cases is the percentage increase in rate constant maximum?
$Case$$E_a \ (kcal/mol)$$Temp. \ Change \ (K)$
$I$$40$$200 - 210$
$II$$80$$200 - 210$
$III$$40$$300 - 310$
$IV$$80$$300 - 310$

Which of the following statements is correct for the activation energy of a reaction?

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