The half life of a first order reaction is equal to:

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1/k

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Cannot be predicted

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0.693/k

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Solution

The correct option is D
0.693/k

For a first order reaction, half life period is independent of the initial concentration of the reacting species.

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Similar questions

Q. If the half life period of a reaction is

0.693 k

, its order will be

Match the following
Order of reaction Half-life period
1)1st order reaction a) $(k a_{0})^{- 1}$
2) Second order reaction b) $\frac{0.693}{k}$
3) Zero order reaction c) $\frac{a_{0}}{2 k}$

Q. The half-life period of a first order reaction having rate constant

k = 0.231 \times 10^{- 10} s^{- 1}

will be:

Q. The half-life of a first order reaction is

900

min at

820 K

. Estimate its half-life at

720

K if the energy of activation of the reaction is

250 k J m o l^{- 1}

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The half life of a first order reaction is equal to:

The correct option is D 0.693/k For a first order reaction, half life period is independent of the initial concentration of the reacting species.

The correct option is D
0.693/k

For a first order reaction, half life period is independent of the initial concentration of the reacting species.