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The molecules of a gas are in constant (...

The molecules of a gas are in constant (i) _______ motion . They move in (ii) ________ lines until they collide with another molecule . The collisions are perfectly (iii) _________ in nature . A real gas behaves as an ideal gas at (iv) _________ temperature and (v) _________ pressure .

A

random vertical straight high low

B

straight random elastic low high

C

random straight elastic high low

D

ideal round elastic low high

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The correct Answer is:
C
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