Q24Short answer
Two different gases ‘A’ and ‘B’ are filled in separate containers of equal capacity under the same conditions of temperature and pressure. On increasing the pressure slightly the gas ‘A’ liquefies but gas B does not liquify even on applying high pressure until it is cooled. Explain this phenomenon.
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Gas ‘A’ is at or below its critical temperature and gas ‘B’ is at a temperature higher than critical temperature.