For a first order reaction the ratio of ...

For a first order reaction the ratio of times to complete `99.9%` and half of the reaction is

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Show that for any first order reaction, the time required for the completion of 99.9% of the reaction is 10times the half-life of the reaction.

The time for half life of a first order reaction is 1 hr. what is the time taken for 87.5% completion of the reaction?

t_(1//2) of a first order reaction is 15 min . Calculate the time for 80% completion of the reaction . If the initial concentration of the reactant is doubled , calculate the time taken for 80% completion of the reaction Give reasons.

If decomposition of H_(2)O_(2) is a first order reaction , how long would it take to complete one- third of the decomposition ? The rate constant of this decomposition reaction is 3xx10^(-2)"min"^(-1) .

Why does a first order reaction never reach completion ?

A first order reaction takes 100 minutes for completion of 60% of the reaction. Find the time when 90% of reaction will be completed.

A first order reaction takes 100 minutes for completion of 50 % of the reaction. Find the time when 75 % of reaction will be completed.

Half fife of a first order reaction is 60 min. How long will it take to consume 90% of the reaction’?

The initial concentration of the reactant in a first order reaction is a . It takes time t for the completion of noth fraction of the reaction. Will it take time 2t for the completion of the same fraction if the initial concentration of the reactant is made twice ?

A first order reaction takes 10min to complete 40% of the reaction. Another first order reaction requires 15min to complete 60% of the reaction. Calculate the ratio of the rate constants of the two reactions.

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