Question

We can also apply the equation for residence time to a single component of a fluid, such as carbon dioxide (CO₂). Assume

that the residence time of CO₂ in the atmosphere is six years and the mass of CO₂ in the atmosphere is 3 x 10¹5
kilograms. If these estimates are correct, what is the mass flow rate of CO₂ into and out of the atmosphere? Assume the
atmosphere is at steady state. Write your answer in scientific notation, and be sure to include the correct units.

Answer 1

The mass flow rate of CO₂ into and out of the atmosphere is 5 x 10¹⁴ kilograms per year.

Step-by-step explanation:

To calculate the mass flow rate of CO₂ into and out of the atmosphere, we can use the formula:

Mass Flow Rate = Mass / Residence Time

Given that the residence time of CO₂ is 6 years and the mass of CO₂ in the atmosphere is 3 x 10¹⁵ kilograms, we can substitute these values into the formula:

Mass Flow Rate = 3 x 10¹⁵ kilograms / 6 years = 5 x 10¹⁴ kilograms/year

Therefore, the mass flow rate of CO₂ into and out of the atmosphere is 5 x 10¹⁴ kilograms per year.

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