Why is the earth\'s atmosphere mostly composed of diatomic nitrogen molecules as

Question

Why is the earth's atmosphere mostly composed of diatomic nitrogen molecules as
opposed to diatomic hydrogen molecules?
a. The mass of the nitrogen molecules is lower than the mass of the hydrogen
molecules.
b. The vrms of the nitrogen molecules is slower than earth's escape speed.
c. The vrms of the hydrogen molecules is slower than earth's escape speed.
d. The vrms of the nitrogen molecules is faster than earth's escape speed.
e. The temperature of the hydrogen molecules is larger than the temperature of the
nitrogen molecules.

Explanation / Answer

b. The vrms of the nitrogen molecules is slower than earth's escape speed.

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