(a) Calculate the amount of gas in moles per cubic meter of atmosphere at p = 1 atm and T = 298 K using the ideal gas equation.
(b) The atmospheric content of CO2 is about 360 ppmv (parts per million by volume). Assuming a pressure of 1.00 atm, estimate the amount of CO2 in a 10.0 km layer of the atmosphere at the surface of the Earth. The radius of the Earth is 6370 km. (The actual amount of CO2 in the atmosphere is about 6.0 × 1016 mol.)
(c) The atmospheric content of O2 is 20.946% by volume. Using the result in part
(b), estimate the total amount of O2 in the atmosphere.
(d) Life on Earth consumes about 0.47 × 1016 mol of O2 per year. What percentage of the O2 in the atmosphere does life consume in a year?
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