# A first-order chemical reaction is observed to have a rate constant of 5 min-1. What is the...

## Question:

A first-order chemical reaction is observed to have a rate constant of 5 {eq}min^{-1} {/eq}. What is the corresponding half-life for the reaction?

a) 1.7 s

b) 1.7 min

c) 36 min

d) 2.4 s

e) 8.3 s

## Half-Life:

For half-life, the rate constant is a must needed quantity. The mathematical formula which is normally utilized for writing or calculating the half-life of the equation is depicted below.

{eq}{\rm{Half - life}}\left( {{t_{\dfrac{1}{2}}}} \right) = \dfrac{{{\rm{0}}{\rm{.693}}}}{{{\rm{Rate}}\;{\rm{constant}}\left( k \right)}} {/eq}

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Given Ddata:

• The rate constant of first order reaction is {eq}5\;{\min ^{ - 1}} {/eq}.

The half-life for the reaction can be calculated is shown...

Zero Order Kinetics: Definition, Pharmacology & Examples

from

Chapter 4 / Lesson 2
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This lesson helps you apply the principle of zero order kinetics, which is a way of describing how the body breaks down some types of medicine. You can use this knowledge to predict how long certain medicines will last when they're given to a patient.