A reaction rate is given by k=1.5 × 1015 exp (-25000 / RT ) s -1 it means that

Question

A reaction rate is given by k=1.5 × 1015 exp (-25000 / RT ) s -1 it means that (A) half-life period of the reaction will be smaller at high temperature (B) log vs T will give a straight line (C) half-life of the reaction will be smaller at lower temperature (D) log vs 1 / T will give a straight line having a slope of -25000

Tardigrade Admin · Accepted Answer

It is a first-order reaction rate. At high temperature, rate constant will be larger. The larger the value of k, the smaller will be the half-life period of first-order reaction. t 1 / 2=(0.693/k)

Q. A reaction rate is given by $k = 1.5 \times 1 0^{15} exp (- 25000/ RT) s^{- 1}$ it means that

half-life period of the reaction will be smaller at high temperature

log vs T will give a straight line

half-life of the reaction will be smaller at lower temperature

log vs 1 / T will give a straight line having a slope of -25000

It is a first-order reaction rate. At high temperature, rate constant will be larger. The larger the value of $k$ , the smaller will be the half-life period of first-order reaction.
$t_{1/2} = \frac{0.693}{k}$

Q. A reaction rate is given by k=1.5×1015exp(−25000/RT)s−1 it means that