The half life of a 1st order reaction is 1min 40 seconds. Calculate its rate constant.

Explanation

To calculate the rate constant (k) for a first-order reaction given its half-life, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the given half-life**:
The half-life (t_half) of the reaction is given as 1 minute and 40 seconds.

2. **Convert the half-life into seconds**:
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