The water will boil
(no calculations necessary, but look at a table that shows the vapor pressure of water at different temperatures.here's a link: http://en.wikipedia.org/wiki/Vapour_pressure_of_water )
At the top of a barometer is typically a sealed chamber containing a vacuum or a reference pressure. This chamber allows the barometer to measure changes in atmospheric pressure by comparing the pressure inside the device to the external air pressure.
When pressure is reduced the boiling point will also reduce
It's fairly simple. Build an air-tight container, and attach a vacuum pump to suck the air out. It's a fairly common thing to do, actually. For a more elaborate vacuum chamber, build a second fairly large airtight container and connect the two together with a valve between them. Attach a vacuum pump (or several of them) and "evacuate" the air from the large chamber. Then, when you open the valve between them, the air in the smaller chamber will immediately be sucked out and into the larger chamber, creating an "instant" vacuum.
When you release a gas in a vacuum chamber, it immediately drops to the floor because of its density. _______________________________________________________ I expect that the gas will expand to fill the whole volume of the vacuum chamber.
In vacuum drying, the material is placed in a chamber where air and moisture are removed by creating a reduced pressure environment. This helps lower the boiling point of water, allowing it to evaporate more easily from the material at lower temperatures. The reduced pressure also accelerates the drying process by promoting faster moisture removal.
The maximum vacuum pressure that can be achieved in this vacuum chamber is 10-6 torr.
The maximum vacuum pressure that can be achieved in the vacuum chamber is typically around 10-6 torr.
You can't. There is no atmosphere in a vacuum.
At the top of a barometer is typically a sealed chamber containing a vacuum or a reference pressure. This chamber allows the barometer to measure changes in atmospheric pressure by comparing the pressure inside the device to the external air pressure.
Assuming that outside the vacuum chamber there is some gas or liquid, then indeed there is a force that pushes on the walls to collapse. If it doesn't collapse, that means the walls are strong enough to withstand that force: weak walls would collapse.
You want to stop boiling water Vacuum Chamber because of the vessel seal. If the pump is boiling it will stop at the point of equilibrium.
You can create a partial vacuum at home by using a vacuum pump or by using a manual vacuum pump. Simply connect the pump to a sealed chamber or container, and then pump out the air to lower the pressure inside the chamber, creating a partial vacuum.
When pressure is reduced the boiling point will also reduce
Turning ice into vapor in a vacuum chamber at 1 torr requires a lower pressure than standard atmospheric pressure to facilitate sublimation (ice directly turning into water vapor without melting). At 1 torr, the pressure might not be low enough to overcome the energy required for sublimation. Lower pressures, below 1 torr, are typically needed for efficient ice sublimation in a vacuum chamber.
vacuum
It's fairly simple. Build an air-tight container, and attach a vacuum pump to suck the air out. It's a fairly common thing to do, actually. For a more elaborate vacuum chamber, build a second fairly large airtight container and connect the two together with a valve between them. Attach a vacuum pump (or several of them) and "evacuate" the air from the large chamber. Then, when you open the valve between them, the air in the smaller chamber will immediately be sucked out and into the larger chamber, creating an "instant" vacuum.
A chamber vacuum cleaner can be purchased at Amazon, eBay or other second hand stores. There are many popular brands of chamber vacuum cleaning including Samsung.