How do scientists create vacuums in containers? What process does it involve? Describe it thoroughly please.
2007-06-25 16:22:59 · 3 answers · asked by Dido 4 in Science & Mathematics ➔ Other - Science
What kind of materials are the containers made of? Why don't they collapse from all of the suction?
2007-06-25 16:31:38 · update #1
With a pump. There are a number of different kinds, but all have the property that an intake chamber is caused to enlarge, then shut off with a valve, and the chamber is then compressed and the gas in it vented to the atmosphere. For high vacuums, a metal strip may be evaporated, and the metal vapor tends to trap gas molecules. A laboratory vacuum pump can be had from supply houses for a few hundred dollars.
2007-06-25 16:28:26 · answer #1 · answered by Anonymous · 1⤊ 0⤋
There are several ways of creating vacuum in a container, most of them mechanical.
And the container is designed to withstand the pressure difference between the outside atmosphere and the inside low pressure or vacuum.
2007-06-25 23:38:02 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
Pumping air out. As I understand it, one way to do that is to have a one-way valve that is attached to the chamber (container) and a hose. Blow air through the hose which creates suction across the one-way valve (moving air decreases pressure) and the moving air "pulls" air out of the container.
2007-06-25 16:31:41 · answer #3 · answered by Chris G 1 · 0⤊ 0⤋