An insulated sphere contains two hemispheres A and B. Each section contains a monatomic ideal gas. The sections are separated by an insulating perfectly flexible wall. Initially the pressure is the same on both sides (85 kPa) and the volumes are the same (1 m3). Heat is supplied to gas B by means of an electrical resistance (a hot wire) until the pressure increases by a factor of 3. If the perfectly flexible wall allows both gases to maintain equal pressures and the initial temperature of both gases is 273 K, compute: (10 points)