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The spontaneity means having the potenti...

The spontaneity means having the potential to proceed without assistance of external agency. The processes which occur spontaneously are

A

flow of heat from colder to warmer body.

B

gas in a container contracting into one corner .

C

gas expanding to fill the available volume .

D

buring carbon in oxygen to given carbon dioxide.

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The correct Answer is:
c,d
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