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Question
Identify whether the following pair have larger entropy or not. If yes then Why?
He(g) in a volume of 1 L or He(g) in a volume of 5 L both at 25°C.
Short Note
Solution
Atoms of He in 5 L at 25°C occupy more volume than in 1 L. Hence, the randomness and disorder is more in 5 L. Expansion of a gas always increases its entropy. Therefore, He(g) in 5 L will have larger entropy.
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Spontaneous (Irreversible) Process
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