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If helium is allowed to expand in vacuum...

If helium is allowed to expand in vacuum, it liberates heat because

A

Helium is an ideal gas

B

Helium is an inert gas

C

The inversion temperature of helium is very low

D

The boiling point of helium is the lowest among the elements

Text Solution

Verified by Experts

The correct Answer is:
C
Because of very low inversion temperature, in a very low pressure region or vacuum at room temperature, helium will show heating effect.
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