Exam how gases can be liquefied?
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Gases can be liquefied by increasing the pressure and decreasing the temperature.
Increasing the temperature will bring the particles closer and cooling will case the particles to lose energy
thus, they will again be attracted towards each other by intermolecular attraction and they form liquids
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L.P.G. which is used for cooking. In the cylinder petrol is in liquid form. When it is lighted it becomes gas.
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