A first order reaction takes 20 minutes for 25% decomposition. Calculate the time when 75% of the reaction will be completed.
(Given, `log2=0.3010,log3=0.4771,log4=0.6021`)

Explanation

To solve the problem, we will use the first-order reaction kinetics formula. The formula for the time taken for a certain percentage of a reactant to decompose in a first-order reaction is given by:

\[ t = \frac{2.303}{k} \log \left( \frac{A}{A - X} \right) \]

Where:
- \( t \) = time taken for the reaction
...