Respuesta :
The equilibrium vapour pressure of diethyl ether and ethanol at room temperature or at 20°C is 442mm and 5.95kPa.
What is vapour Pressure
The pressure exerted by gas in equilibrium state with a solid or liquid in container at a given temperature is termed as vapour pressure.
.Factor affecting vapour pressure:-
Surface area:
The surface area of solid of liquid which is in contact with the gas do not much affect the vapour pressure.
Type of molecules:
Greater the intermolecular face small will be smaller will be vapour pressure, if lesser the force then greater will be the vapour pressure.
Temperature:
At high temp.,more molecules has enough energy to escape from the liquid or solide. At lower temp. feuer molecule escape enhance lesser tha vapour pressure.
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