Half-life for 1st order reactions is:
Correct answer: B. T½ = 0.693/k
- A. T½ = k/0.693
- B. T½ = 0.693/k
- C. None of these
- D. T½ = 0.693k
Explanation
The half-life of first-order reactions is given by the equation:T1/2 = 0.693/kwhere 'k' is the rate constant.
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Reaction order shows how the rate depends on the concentration of each reactant, as expressed in the rate law. Coverage includes zero, first and second-order reactions, integrated rate equations, half-life, units of rate constants and the distinction between overall order and molecularity.
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