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A gas mixture at 27 ˚C and 1 atm contains equal masses of He, H2, CO2, and CH4. How do their moleculGases Chemistry Question

Question

A gas mixture at 27 ˚C and 1 atm contains equal masses of He, H2, CO2, and CH4. How do their molecular velocities compare?

A.

He = H2 = CO2 = CH4

B.

He < H2 < CO2 < CH4

C.

H2 < He < CH4 < CO2

D.

CO2 < CH4 < He < H2

✓ Correct
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