If he(g) has an average kinetic energy of 4790 j/mol under certain conditions, what is the root mean square speed of cl2(g) molecules under the same conditions?

We need to know the root mean square speed of Cl₂ molecule.

The root mean square speed of Cl₂ molecule is:3.67 X 10⁴ cm/sec.

Average kinetic energy= RT, where R=Molar gas constant and T=absolute temperature in Kelvin.

Given, average kinetic energy= 4790 J/mol, R= 8.314 J/mol/K

So, T=

T=384.09 K

Root mean square velocity=

For, Cl₂ molecule, M= 71 g/mol, T=384.09 K (as condition is same as previous)

So, Root mean square velocity= =3.67 X 10⁴ cm/sec

Hence, Root mean square velocity= 3.67 X 10⁴ cm/sec.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

the answer is barium and copper bromide