One mole of which of the following has the highest entropy?

Liquid nitrogen

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Hydrogen gas

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Mercury

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Diamond

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Solution

The correct option is B Hydrogen gas
The measure of randomness of a substance is called entropy. Greater the randomness of molecules of a substance greater is the entropy. Here hydrogen gas has more entropy as it shows more randomness/disorderliness due to less molar mass than all the given substances and also in the gas phase.

Hence, option B is correct.

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