Question

Is it possible to liquefy atmosphere gases? If yes. Suggest a method
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Answer 1

yes it is possible to liquefy atmospheric gases bye the gases can be converted into liquid by bringing its particles closer to the atmospheric gases can liquify by decreasing temperature or by increasing the pressure it is a useful method to liquefy atmospheric gases

Answer 2

L.P.G. which is used for cooking. In the cylinder petrol is in liquid form. When it is lighted it becomes gas.