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Physics
Critical temperature of CO2 is 31.2° C . In summer, the room temperature is 40° C
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Q. Critical temperature of $CO_{2}$ is $31.2^{\circ} C$ . In summer, the room temperature is $40^{\circ} C$
Manipal
Manipal 2011
A
$CO_{2}$ cannot be liquefied
47%
B
can be liquefied with increase of pressure
35%
C
can be liquefied with decrease of pressure
12%
D
can be liquefied if temperature of $ CO_{2}$ is decreased below $ 31.2^{\circ} C$
6%
Solution:
Gasses cannot be liquified above critical temperature but at high pressure they can be.