What's the role of temperature and pressure during liquefaction of gases?

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Solution

When high pressure is applied to a gas, space between the particles of the gas gets compressed, thereby reducing the spaces between the particles. This reduces its volume. In this way, the particles of the gas get so close together that they start attracting each other sufficiently to form a liquid. Now, when a gas is compressed too much, heat is produced due to compression. So, while applying pressure to liquefy a gas it is equally important to cool them to cool away the heat produced during compression. Cooling lowers the temperature of the compressed gas and helps in liquefying it.

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Similar questions

Which of the following represent the suitable conditions for the liquefaction of gases?

(a) low temperature, low pressure (b) high temperature, low pressure

Column I	Column II
(a) Drying of clothes on a windy day	(i) Time taken for evaporation increases
(b) Liquefaction of gases	(ii) Decreasing pressure and increasing temperature
(c) Change in state of dry ice from solid to gas	(iii) Increasing pressure and decreasing temperature
(d) Less cooling effect of sweating in coastal areas	(iv) Rate of evaporation increases

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