A mole of diatomic oxygen molecules and a mole of diatomic nitrogen molecules at STP have
A. the same average molecular speeds.
B. the same number of molecules.
C. the same diffusion rates.
D. all of the above
Answer:B
A mole of diatomic oxygen molecules and a mole of diatomic nitrogen molecules at STP have
A. the same average molecular speeds. B. the same number of molecules. C. the same diffusion rates. D. all of the above