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AP® Physics 1 & 2

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Moderate

Speed of Particles in Atmosphere of Venus

APPH12-LYWA4N

The atmosphere of Venus consists primarily of carbon dioxide ($C{ O }_{ 2 }$), but contains trace amounts of nitrogen (${N}_{2}$), sulfur dioxide ($S{ O }_{ 2 }$), and argon ($Ar$).

Given the list of approximate atomic masses, which of these four components in the atmosphere of Venus is moving with the greatest average speed?

C - 12 amu
O - 16 amu
N - 14 amu
S - 32 amu
Ar - 40 amu

A

$C{ O }_{ 2 }$

B

$S{ O }_{ 2 }$

C

${N}_{2}$

D

$Ar$