A container with gas and a moving piston contains a gas phase reaction that produces $61\mathrm{.}3$ J of heat.

The total number of moles of gas in the system does not change. The gas inside the container has an initial volume from $1\mathrm{.}0$ L to $298$ K and $1$ atm. If the temperature rises to $350$ K and the piston pressure remains constant, what

will be the volume of the gas? How much work is done in the system when the gas expands? Which is the change in the internal energy of the gas? Assume that the gas behaves like an ideal gas.