The escape velocity on Mars is 5.0 km/s, and the surface temperature is typically 0oC. Calculate the

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The escape velocity on Mars is 5.0 km/s, and the surface temperature is typically 0oC.

Calculate the rms speeds for

(a) H2,

(b) O2,

(c) CO2 at this temperature.

(d) If the rms speed of a gas is greater than about 15% to 20% of the escape velocity of a planet, virtually all of the molecules of that gas will escape the atmosphere of the planet. Based on this criterion, are H2, O2, and CO2 likely to be found in Mars's atmosphere?

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