Which substance has the highest standard molar entropy at 25°C?

Name: Which substance has the highest standard molar entropy at 25°C?
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Question

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The substance with the highest standard molar entropy at 25°C is the one with the most disorder (or randomness) in its molecular structure. This is reflected in its higher entropy value. Among the choices given, gas tends to have higher entropy than solids or liquids. Therefore, option B, C₂H₄(g) which is a gas, has the highest standard molar entropy at 25°C.

Which Substance Has the Highest Standard Molar Entropy at 25°C