Which process would have a positive value for the change in entropy?
i. The expansion of the universe
ii. The condensation of a liquid
iii. A food fight in a school cafeteria

i only

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ii only

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iii only

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ii and iii only

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i and iii only

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Solution

The correct option is E i and iii only
The following process would have a positive value for the change in entropy.
i. The expansion of the universe
iii. A food fight in a school cafeteria
The following process would have a negative value for the change in entropy.
ii. The condensation of a liquid. The entropy of solid is lower than the entropy of liquid due to higher disorder.

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Which process would have a positive value for the change in entropy?i. The expansion of the universeii. The condensation of a liquidiii. A food fight in a school cafeteria

Which process would have a positive value for the change in entropy?
i. The expansion of the universe
ii. The condensation of a liquid
iii. A food fight in a school cafeteria