alcohol has high vapour pressure than water at room temperature.
Well that depends, do you think 0.79 grams is high? Compared to water, which has a density of 1.0 grams.. so does alcohol have a high density compared to water? No. :P
Liquid water can exist at (and above) 100 degrees Celsius if the pressure is increased above one atmosphere (about 100 000 Pascals). The high pressure squeezes the molecules together, and does not allow them to separate into a gas. This forces it to remain as a liquid, despite the high temperature. Of course, water vapour (steam) can certainly exist above 100 degrees Celsius.If you're interested in how the two phases exist together, if you heat water to 374 degrees Celsius and increase the pressure to 218 atmospheres, the properties of the liquid and the vapour merge together to form only one "supercritical fluid" phase.
CAVITATION is the process of formation of vapour bubbles of flowing fluid in a region where the pressure of the liquid falls below its vapour pressure and the sudden collapsing of these vapour bubbles in region of high pressure. where SUPERCAVITATION IS THE CONTROLLED FORM OF CAVITATION WHICH HELP US TO attain more underwater speed
In an alcohol barometer, the alcohol level would rise to about 13.6 inches at normal atmospheric pressure.
When water is exposed to high pressure, it can change its physical state. At high pressure, water can become denser and may even turn into a solid form, such as ice. This is because the pressure forces the water molecules to come closer together, causing a change in its properties.
Well, if you increase the pressure of the atmosphere, isothermally, around water high enough, then you will overcome the 'vapour pressure' of the water, or the pressure of the water's surface back on the atmosphere to put is very, very simply. SOOOO, if you increase gravity, then you increase atmospheric pressure, which will condense any water vapour in the air. You can decrease gravity to see that the vapour pressure of the newly condensed liquid water will overcome the atmospheric pressure and vaporize. Keep in mind this works in standard conditions, not at extreme temperatures and pressures.
when pressure on the suction side of the pump drop below the vapour pressure of the liquid, vapour forms. It's caused because of insufficient suction head, high suction lift, excessive friction head, or high liquid temperature.
because it has a high vapor pressure and evaporates faster than water.
Air is the mixture of different gases (like oxigen, nitrogen, co2 e.t.c.) & water vapour. Gases are only gases, here is no water vapour. And water vapour is form after the vapourization of water at high temperature.
When water is heated at extremely high temperatures.
When temperature is increased the amount of molecules evaporated is increasef and as a consequence condensation is also increased so vapour pressure increases.
This could be interpretted several ways. The atmosphere is not uniform, there are areas of high and low pressure, humidity and temperature. So for hot places water vapour rises into the atmosphere, wind travels down a pressure gradient and the temperature drops causing the water vapour to condense until it is too heavy and falls down as precipitation.
Yes
bcoz of the intermolecular hydrogen bonding in methyl alcohol the vapour pressure of the molecule equalises the atmospheric pressure at higher temperatures. there is no hydrogen bonding in dimethyl ether and hence the molecule escapes at relatively lower temperatures.
Water has a high pressure all the time.
Soapy high pressure water
Boiling of a liquid: The temprature at which the vapour pressure of a liquid becomes equal to the external pressure is called boiling point. So the atmospheric or external pressure on mount everest is low. Thats why water boils quickly.