There are two containers of equal volumes, each filled with a different gas. Both containers have the same number of moles of gas and are at the same temperature. The molecules of gas in container $1$ are four times more massive than the molecules of gas in container $2.$

The number of moles in container $2$ is increased until it is a factor of $4$ larger than the number of moles in container $1.$ The volume and temperature of container $2$ remain unchanged.

After increasing the number of moles in container $2$:

Which container, $1$ or $2,$ has a higher pressure, or are they the same?

They have the same pressure

Which container, $1$ or $2,$ has a higher average $($rms$)$ speed of gas molecules, or are they the same?

Container $2$

Which container, $1$ or $2,$ has a higher average kinetic energy of gas molecules, or are they the same?

They have the same average kinetic energy of gas molecules

Which container, $1$ or $2,$ has a higher thermal energy, or are they the same?

They have the same thermal energyThere are two containers of equal volumes, each filled with a different gas. Both containers have the same number of moles of gas and are at the same temperature. The molecules of gas in container $1$ are four times more massive than the molecules of gas in container $2.$

The number of moles in container $2$ is increased until it is a factor of $4$ larger than the number of moles in container $1.$ The volume and temperature of container $2$ remain unchanged.

After increasing the number of moles in container $2$:

Which container, $1$ or $2,$ has a higher pressure, or are they the same?

They have the same pressure

Which container, $1$ or $2,$ has a higher average $($rms$)$ speed of gas molecules, or are they the same?

Container $2$

Which container, $1$ or $2,$ has a higher average kinetic energy of gas molecules, or are they the same?

They have the same average kinetic energy of gas molecules

Which container, $1$ or $2,$ has a higher thermal energy, or are they the same?

They have the same thermal energy