\(200 \mathrm{~J}\) of heat is added to two gases, each in a sealed container. Gas 1 is in a rigid container that does not change volume. Gas 2 expands as it is heated, pushing out a piston that lifts a small weight. Which gas has the greater increase in its thermal energy?

A. Gas 1 B. Gas 2 C. Both gases have the same increase in thermal energy.