LPG is stored in a cylinder and a liquid. when you burn it in the store, it is in the gaseous form. What kind of changes occur during the use of LPG ?
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Burning of LPG involves both physical and chemical changes because when LPG comes out of cylinder and is converted from liquid to gaseous state it is a physical change. When the gas burns in air it is a chemical change.
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LPG is stored in liquid form at higher pressure inside the cylinder. Once the pressure is reduced at the regulator, liquid LPG is converted in to gaseous LPG and flows to burner slightly at higher pressure than atmospheric.. Only change is the reduction in liquid LPG pressure and become gas at outside temperature
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