Question

11. The critical temperature of CO2 gas is 304 K. The
gas cannot be liquefied at [NCERT Pg. 153]
(1) 160 K
(2) 152 K
(3) 183 K
(4) 608 K​

Answer 1

Answer:

Tc of CO2 gas is 304k

Generally gases are liquified at low temperature and hingh pressure

608k is the correct answer

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Explanation:

Answer 2

The gas cannot be liquified at 608K.

• The temperature of gas above which the gas exist only as a gaseous phase and can't be liquified is called the critical temperature of that gas.
• Here given that the critical temperature of carbon dioxide is 304K.
• So, carbon dioxide exists only as a gas above 304K and it can be liquified below 304K. So, carbon dioxide cannot be liquified at 608K.
• Hence the correct option is 4.