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Chapter 6: Q16DQ (page 1475)

In Example 43.9 (Section 43.4), the activity of atmospheric carbon before 1900was given. Discuss why this activity may have changed since1900.

Short Answer

Expert verified

The activity has changed since 1900 because of the increase in the carbon dioxide in the atmosphere over the regular rate1900 that results in the contamination caused by the industrial activities, mainly in the coal-powered factories.

Step by step solution

01

Define the activity.

The rate of change of Ntis the negative quantity dNtdtthus -dNtdtis called the decay rate or the activity.

The activity is directly proportional to Nt; it equals a constant λmultiply by Nt:

-dNtdt=λNt

02

Explanation.

The increase in the carbon dioxide in the atmosphere over the regular rate1900 due to those results in the contamination caused by the industrial activities, mainly in the coal-powered factories.

Hence, the activity has changed since 1900.

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