Identify the correct statements from the following I. $\Delta_{\mathrm{r}} \mathrm{G}$ is zero for $\mathrm{A} \rightleftharpoons \mathrm{B}$ reaction II. The entropy of pure crystalline solids approaches zero as the temperature approaches absolute zero III. $\Delta U$ of a reaction can be…

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Identify the correct statements from the following I. $\Delta_{\mathrm{r}} \mathrm{G}$ is zero for $\mathrm{A} \rightleftharpoons \mathrm{B}$ reaction II. The entropy of pure crystalline solids approaches zero as the temperature approaches absolute zero III. $\Delta U$ of a reaction can be determined using bomb calorimeter

Aicharya · Accepted Answer

(I) For equilibrium reaction Gibb's free energy i.e $\Delta \mathrm{G}_{\mathrm{r}}=0$ (II) According to third law of thermodynamics, the entropy of pure crystalline solid approaches zero as the temperature approaches absolute zero. This is because there is perfect order in a crystal at absolute zero. (III)For a chemical reactions, heat absorbed at constant volume i.e $\Delta U$ is measured in a bomb calorimeter.

Identify the correct statements from the following I. $\Delta_{\mathrm{r}} \mathrm{G}$ is zero for…

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