A radioactive isotope decomposes according to the first orde... — Chemistry | Mockzy

EasyChemistryIntegrated Rate law

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A radioactive isotope decomposes according to the first order with half life period of 15 hrs. 80% of the sample will decompose in -

15 × 0.8 hr.

15 × (log 8) hr.

15 × (log5 / log2) hr. (or 34.83) hr.

15 × 10/8 hr.

The rate constant for a second order reaction is 8.0 × 10⁻⁴ litre mol⁻¹ min⁻¹. H

Radioactive decay follows -

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