Grade 12Physical Chemistry
VAPOUR PRESSURE OF A LIQUID IN A CLOSED CONTAINER DOES NOT DEPEND UPON: ?
1 Answer
bhanuveer danduboyina
In a closed container, the vapour pressure of a liquid depends entirely on its temperature.
When the vapour pressure is stable at a stable temperature, the liquid and its vapour are said to be 'In Equilibrium'.
(Equilibrium is achieved when..'The number of molecules leaving the liquid into the vapour phase, is equal to the number returning to the liquid phase from the vapour').
Any change in temperature will break the equilibrium and the VP will change accordingly. Only when the liquid re-stabilises at a new temperature, will the VP re-stabilise at the new equilibrium pressure.
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