Question

All the gases show cooling effect when allowed to undergo adiabatic expansion
When the temp is less than a particular temperature called
a)
Curie temp
b) Neels temp
C) Inversion temp
d) Critical temp
Q14. Hydrogen and Helium normally don't show cooling because
a)
Their critical temp is very low
b). Their critical temp is very high
C)Their inversion temp is very low
d). Their inversion temp is very high
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Answer 1

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Here is your answer

The answer is option c

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