MCQ
The rate constant of a first order reaction whose half-life is $ 480\,\sec$ , is
- A$2.88 \times {10^{ - 3}}\,{\sec ^{ - 1}}$
- ✓$1.44 \times {10^{ - 3}}\,{\sec ^{ - 1}}$
- C$1.44\,{\sec ^{ - 1}}$
- D$0.72 \times {10^{ - 3}}\,{\sec ^{ - 1}}$
✓
Answer
Correct option: B.
$1.44 \times {10^{ - 3}}\,{\sec ^{ - 1}}$
b
(b)${t_{1/2}} = \frac{{0.693}}{k},\,\,k = \frac{{0.693}}{{480}} = 1.44 \times {10^{ - 3}}\,{\sec ^{ - 1}}$.
(b)${t_{1/2}} = \frac{{0.693}}{k},\,\,k = \frac{{0.693}}{{480}} = 1.44 \times {10^{ - 3}}\,{\sec ^{ - 1}}$.
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