Why petrol dissapear in open container

Petrol or gasoline evaporates quickly in open containers due to its volatile nature. Gasoline is a mixture of different hydrocarbons, which have low boiling points. When exposed to air, the lighter fractions of gasoline can vaporize and turn into gas, which makes gasoline disappear. This process is called evaporation. The speed of evaporation depends on the temperature, humidity, and air movement surrounding the gasoline. Therefore, it is essential to store gasoline in airtight containers and in cool, dry places to prevent unnecessary waste and reduce the risk of fire or explosion.