Physics - Heat & Thermo Question with Solution | TestHub

Two containers, each of volume $3\times 10^{-4}$ $m^3$, hold equal amounts of ideal gas at 75 cm Hg and 300 K and are joined by a U-tube with mercury at equal levels. The containers receive 6 J and 12 J of heat. Find the final difference in mercury levels in cm (one decimal). $C_v=12.5$ J $mo{l}^{-1}$$K^{-1}$; neglect the tube volume.