Author Question: A mole of oxygen (O2) molecules and a mole of carbon dioxide (CO2) molecules at the same temperature ... (Read 160 times)

shofmannx20 · **on:** Jul 29, 2018

A mole of oxygen (O2) molecules and a mole of carbon dioxide (CO2) molecules at the same temperature and pressure have

A) the same average molecular speeds.
B) the same number of atoms.
C) different average kinetic energy per molecule.
D) the same number of molecules.
E) different volumes.

Question 2

If we double the root-mean-square speed (thermal speed) of the molecules of a gas, then

A) its temperature must increase by a factor of 4.
B) its temperature must increase by a factor of 2.
C) its temperature must increase by a factor of .
D) its pressure must increase by a factor of 2.
E) its pressure must increase by a factor of 4.