Predict which of the following substances has the highest entropy value at 25 $^{o} C$ ?

C H_{3} O H (l)

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H_{2} O (l)

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CO(g)

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C a C O_{3} (s)

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MgO(s)

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Solution

The correct option is C CO(g)
Physical state and Entropy.
Gas $>$ Liquid $>$ Solid
As the $C O$ is the only gas in options. Hence the $C O (g)$ has highest value of the entropy.

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Similar questions

4 N H_{3} (g) + 70_{2} (g) \to 4 N O_{2} (g) + 6 H_{2} O (g)

C O (g) + 2 H_{2} (g) \to C H_{3} O H (l)

C (s, g r a p h i t e) + H_{2} O (g) \to C O (g) + H_{2} (g)

H_{2} O (s) \to H_{2} O (l)

Which of the following has highest entropy?

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