Critical temperature of H2O⋅NH3⋅CO2and O2 are 647k.405.6K,304.10K and 154.2 K respectively. If the cooling starts from 500 K to their critical temperature. the gas that liquefies first is
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a
H2O
b
NH3
c
CO2
d
O2
answer is B.
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Detailed Solution
Since the cooling starts from 500 K, so water is nm under consideration.As it is much easier to achieve 500 K from 405.6K.So,NH3 will get liquefied first.
Critical temperature of H2O⋅NH3⋅CO2and O2 are 647k.405.6K,304.10K and 154.2 K respectively. If the cooling starts from 500 K to their critical temperature. the gas that liquefies first is