what is the difference of vaccum pressure and vapour
pressure ?
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vaccum pressure is negative pressure and it may be achieved by suction or vaccum pump.it lies always below the atmospheric pressure. Vapour pressure is the pressure exerted by the vapours at its boiling point and it is equal to atmospheric pressure
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Answer / sumi
vaccume presure is negative pressure.ie:less than atmospheric pressure but vapour pressure is saturation pressure
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