Two containers contain the same gas at different temperatures and pressures, as indicated in the figure. The small container has a volume of 2 L, and the large container has a volume of 4 L. The two containers are then connected to each other using a thin tube, and the pressure and temperature in both containers are allowed to equalize. If the final temperature is 394 K, what is the final pressure? Assume that the connecting tube has negligible volume and mass.