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is it the answer? Pressure causes the molecules to smunch together. Likewise, reducing pressure on a liquid will cause the molecules to spread out, turning it to gas
say u have gas in a container, the molecules inside will be moving randomly exerting pressure on the wall of the container. nw when u increase the pressure that means when reducing its volume, the molecules inside will come very closer to each other so that the inter molecular attraction of molecules will be higher... this will lead the molecules to combine together to form liquid... that is the gas will be liquefied.
ur second statement is nt practically correct... liquid becoming gas depends on temperature....
NO, IT STILL DEPENDS ON THE PRESSURE. IT HAS NOTHING TO DO WITH THE TEMPERATURE
alright.. I got it! Thanks a lot! :)
@jerry_5594 how do u reduce pressure in liquid????? when temperature increases the molecules move faster breaking their bonds and try to escape as gas... liquid becomes gas this way.......
BY PUTTING A LOT OF AIR PRESSURE ON IT.
putting pressure on liquid will not make it gas... putting pressure on gas will make it liquid.
@jerry_5594 not so... that will even compress more not gonna be converted into gas :)
IF THERES ENOUGH PRESSURE IT WILL TURN IN TO A LIQUID
ok @zaara this happens when the temp of gas is below critical temp. Above Tc no amount of pressure will liquify the gas.. Why?
Gases can't be liquefied at temperatures above the critical temperature because at this point the properties of gases and liquids become the same, and there is no basis on which to distinguish between gases and liquids. The vapor pressure of a liquid at the critical temperature is called the critical pressure (Pc). The vapor pressure of a liquid never gets larger than this critical pressure.
and K.E. also is very high at Tc ... Right?
yeah! u got it!!