The spontaneity means, having the potent...

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

flow of heat from colder to warmer body

gas in a container contracting into one corner

gas expanding to fill the available volume

burning carbon in oxygen to give carbon dioxide

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D flowing of heat from warmer to colder body , expanding of gas and burning of carbon to give carbon dioxide, alll are spontaneous process.

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BRILLIANT PUBLICATION-CHEMICAL THERMODYNAMICS -LEVEL-III

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