Two mysterious gasses: Part C | Problem\ Consider a closed system with two regions (

A

and

B

) which are isolated from their surroundings. Region

A

contains 2 moles of helium gas. Region B contains 2 moles of argon gas. Both gases are monatomic ideal gases, and they are in thermal equilibrium with each other at

20\\\\deg C

.\ What is the root mean square speed of the helium gas in region

A

?\

342(m)/(s)

\

125000(m)/(s)

\

353(m)/(s)

\

1350(m)/(s)