Question

8 $g$ of oxygen and hydrogen each at ${27}^{\circ }C$ will have the total kinetic energy in the ratio of $x:y$, then $x+y$ =

Answer 1

8 $g$ of oxygen means 0.25 $mol$, and 8 $g$ of hydrogen means 4 $mol$. Molar ratio is 1:16.

and at same temperature, they will have kinetic energy in molar ratio so $x:y$ = 1:16

and $x+y$ = 1+16 = 17.