1. Calculate the Quantity of Carbon Dioxide Exhaled
On average, the amount of carbon dioxide a single human exhales ranges from 0.85 to 1.43
kilograms per day. Assuming the astronauts limit their activity and exhale only 1.0 kg of carbon
dioxide per day, calculate the amount of carbon dioxide exhaled by three astronauts over the
course of 96 hours:
Using the range from above, your team has determined that the three
astronauts would exhale between 10 kg and 17 kg of carbon dioxide. Use this value to check
your work based on the ratio of 1.0 kg per day.
Is your answer within the range expected? If so, proceed with your calculations. If not, review
your calculations, paying special attention to the cancelation of units. If your answer is still out
of range, use the upper value of the range (17 kg) in the calculations going forward.