Which of these species would you expect to have the highest standard entropy (S°)? O C$_2$H$_2$(g) O C$_3$H$_8$(g) O CH$_4$(g) O C$_2$H$_6$(g) O C$_2$H$_4$(g)
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Generally, larger and more complex molecules have higher entropy because there are more ways to arrange their atoms and molecules. Gaseous molecules have higher entropy than liquids or solids because gas molecules are more dispersed and have more freedom of Show more…
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In each of the following pairs, which compound would you expect to have the higher standard molar entropy: (a) $\mathrm{C}_{2} \mathrm{H}_{2}(g)$ or $\mathrm{C}_{2} \mathrm{H}_{6}(g),(\mathbf{b}) \mathrm{CO}_{2}(g)$ or $\mathrm{CO}(g) ?$
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