Diffusion Pump
A pressire as low as 3 x 10^-8 Torr can be achieved using an oill diffusion pump.?
Boltzmann’s constant id 1.381 x 10^-23 J/K. How many molecules are there in 1 cubic centimer of gas at this pressure if the temperature is 305K? Answer in Molecules.
PV=nRT Look up in your book what the symbols stand for if you do not know them (you should).
Boltzmann’s constant has nothing to do with this problem, but getting the right units for all the parameters is vital.
home made diffusion pump…so far
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Silicone Diffusion Pump Fluid, Dow Corning – Size Bottle, 500 mL – Model 1123459 – Each (500 ML) For demanding high and ultra-high vacuum applications. Chemically- and thermally-inert fluids. Excellent oxidation resistance. Formula 702 has a mid-range viscosity and is especially formulated for diffusion pump applications. Formula 704 for ultra-high vacuum as well as general purpose, with untrapped vacuum 10-7 to 10-8 torr. Formula 705 for ultra-high and ultra-clean vacuum, with untrapped va… |
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Silicone Diffusion Pump Fluid, Dow Corning – Size Bottle, 500 mL – Model 1123653 – Each (500 ML) For demanding high and ultra-high vacuum applications. Chemically- and thermally-inert fluids. Excellent oxidation resistance. Formula 702 has a mid-range viscosity and is especially formulated for diffusion pump applications. Formula 704 for ultra-high vacuum as well as general purpose, with untrapped vacuum 10-7 to 10-8 torr. Formula 705 for ultra-high and ultra-clean vacuum, with untrapped va… |
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Silicone Diffusion Pump Fluid, Dow Corning – Size Bottle, 500 mL – Model 2739585 – Each (500 ML) For demanding high and ultra-high vacuum applications. Chemically- and thermally-inert fluids. Excellent oxidation resistance. Formula 702 has a mid-range viscosity and is especially formulated for diffusion pump applications. Formula 704 for ultra-high vacuum as well as general purpose, with untrapped vacuum 10-7 to 10-8 torr. Formula 705 for ultra-high and ultra-clean vacuum, with untrapped va… |
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Water and Air Purification Ozone Generator- Travel Kleen Ozone Generator, for Overseas Travel, Home, Camping, Hiking, Vegetables, Fruits, Emergency $139.95 Our Travel-Kleen is perfect for on-the-go people. The Travel-Kleen is designed with travel and portability in mind. At just over 1 lb, it is light and easy to carry, with the option of using it in your car, vacationing and overseas traveling. With this 12Volt DC portable ozone unit you are only minutes away, where ever you may be, from enjoying fresh, clean, purified drinking water with the includ… |
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Senso Diffusion The Agnes Shoe in Green Glitter,Shoes for Women Senso Diffusion The Agnes Shoe in Green Glitter,Shoes for Women:… |
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The Laboratory Companion: A Practical Guide to Materials, Equipment, and Technique $105.00 Praise for The Laboratory Handbook by Gary S. Coyne& “This is probably the most useful volume I have encountered for many years and should be made compulsory reading for all those involved in research, particularly new research students.” – Chromatographia “The book will be valuable for readers needing to understand the theory and proper using, cleaning, and storing methods of laboratory equipment… |
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Physical Vapor Deposition. … |
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Blade Element Performance of Axial-flow Pump Rotor with Blade Tip Diffusion Factor of 0.66 (NASA TN D-3602) … |