Question

The rate constant, the activation energy and the
arrhenius parameter of a chemical reaction at 25°C
are 3 x 10^-4 sec-1, 104.4 kJ mol-1 and
6.0 x 10^14 sec ) respectively, the value of the rate
constant as T=infinity
(1) 2 x 10^5 sec ! (2) 6 x 10^14 sec-1
(3) Infinity
(4) 3.6 x 10^30 sec-1​

Answer 1

Answer:

See below.

Explanation:

The Arrhenius equation is given by,

$K=Ae^{\dfrac {-E_{a}}{RT}}$

When T is tends to infinity then,

$\begin{aligned}T\rightarrow \infty \\ \Rightarrow \dfrac {-E_{a}}{RT}\rightarrow 0\\ \Rightarrow \dfrac {-E_{a}}{e^{RT}}\rightarrow 1\end{aligned}$

Hence, the Arrhenius equation reduces to,

$\begin{aligned}K=A\\ =6\times 10^{14}s^{-1}\end{aligned}$

Which gives us the answer.