If the Average Speed of O₂ Molecules at STP Is

Multiple Choice

If the average speed of O₂ molecules at STP is 4.3 x 10² meters per second, what is the average speed of H₂ molecules at the same temperature and pressure?

A) 1.1 x 10²
B) 2.2 x 10²
C) 8.6 x 10²
D) 1.7 x 10³
E) none of the above