For the first order reaction at `27^(@)C`, the ratio of time required for 75 % completion to 25 % completion of reaction is

For a first order reaction at 27^@ C, the ratio of time required for 75% completion to 25% completion of reaction is

For a first order reaction at 27^(@)C the rato of time required for 75% completion of 25% completion of reaction is

In the case of a first order reaction, the ratio of time required for 99.9% completion to 50% completion is

In the case of a first order reaction, the ratio of time required for 99.9% completion to 50% completion is

For a 1st order reaction the time required for 75% completion is—times, the time required for 50% completion.

Show that for a first order reaction the time required for 75% completion is twice the time required for the completion of 50% of reaction.

For a first order reaction, the ratio of the time for 75% completion of a reaction to the time for 50% completion is_______(Integer answer)

A first order reaction takes 69.3 min for 50% completion. The time required for 80% completion of this reaction is :

For a first order reaction, show that time required for 99 % completion is twice the time required for the completion of 90 % of reaction.