States of Matter 1 Question 38
38. When an ideal gas undergoes unrestrained expansion, no cooling occurs because the molecules
$(1984,1 \mathrm{M})$
(a) are above the inversion temperature
(b) exert no attractive forces on each other
(c) do work equal to loss in kinetic energy
(d) collide without loss of energy
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Solution:
- According to postulates of kinetic theory, there is no intermolecular attractions or repulsions between the molecules of ideal gases.
