Question

45) Critical temperatures of H20, NH3, CO2 and 02
are 647 K, 405.6 K, 304.10 K and 154.2 K
respectively. If the cooling starts from 500 K to
their critical temperature, the gas that liquefies
first is :​

Answer 1

Answer:

H2O

Explanation:

Critical Temperature of the gas in critical state, above which it cannot be liquefied by pressure.

Here, cooling starts from 500 K to critical temperature. So, H2O will liquefied first due to it's maximum critical temperature value.

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