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Unformatted text preview: 2. Two identical lengths of piping are to be joined by a curved 90 o elbow section or a sharp right-angle elbow section. Which overall assembly is expected to have a higher conductance? Why? 3. After evacuation of a chamber whose volume is 30 liters to a pressure of 10-6 torr, the pumps are isolated. The pressure rises to 1 x 10-3 torr in 3 minutes. a. What is the leak rate? b. What ultimate pressure can be expected if a diffusion pump with an effective speed of 40 l/s is attached to the chamber?...
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This note was uploaded on 12/30/2010 for the course MTE 550 taught by Professor S.gupta during the Spring '08 term at Alabama.
- Spring '08