Consider a system with a gas throughput of 8 mbar-L/s of which 75% is water and 25% is air. The system is pumped with a 8,000 L/s diffusion pump. a. What pressure will be reached b. If a cryo-surface with a pumping speed of 30,000 L/s is added to the diffusion pump, what pressure will be reached? A chamber of 0.3 m contains N, molecules at a pressure of 10 atm and 300K. a. What is the most probable velocity, the mean velocity, and the root mean square velocity of the gas molecules in the sample? b. What is the impingement flux in [molecules cm 5] of the sample at these conditions? c. What is the Knudsen number and flow regime expected in this sample