Consider two gases, A and B, both at the same temperature. The molar mass of A is MA, the molar mass of B is MB. The graph shows the speed distributions for the A and B molecules. Which dual statement is correct? Probability 0.25 0.20 0.15 50.10 0.05 0.00 0 A B 200 400 600 800 1000 Molecular speed (m/s) OMA = MB. There are more molecules of type A than type B. OMA < MB. A and B have the same average speed. OMA > MB. A and B have the same average speed. OMA MB. A and B have the same average kinetic energy. OMA MB. A and B have the same average kinetic energy.

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Consider two gases, A and B, both at the same temperature. The molar mass of A is
MA, the molar mass of B is MB. The graph shows the speed distributions for the A
and B molecules. Which dual statement is correct?
Probability
0.25
0.20
0.15
0.10
0.05
0.00
0
A
B
200 400 600 800 1000
Molecular speed (m/s)
OMA
OMA < MB. A and B have the same average speed.
Ο ΜΑ
MB. A and B have the same average speed.
MAMB. A and B have the same average kinetic energy.
OMA MB. A and B have the same average kinetic energy.
=
MB. There are more molecules of type A than type B.
Transcribed Image Text:Consider two gases, A and B, both at the same temperature. The molar mass of A is MA, the molar mass of B is MB. The graph shows the speed distributions for the A and B molecules. Which dual statement is correct? Probability 0.25 0.20 0.15 0.10 0.05 0.00 0 A B 200 400 600 800 1000 Molecular speed (m/s) OMA OMA < MB. A and B have the same average speed. Ο ΜΑ MB. A and B have the same average speed. MAMB. A and B have the same average kinetic energy. OMA MB. A and B have the same average kinetic energy. = MB. There are more molecules of type A than type B.
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