Use the Following Data to Calculate the Standard Reaction Entropy

question 8

Multiple Choice

Use the following data to calculate the standard reaction entropy at 298 K for the thermal decomposition of ammonium chloride, NH₄Cl
NH₄Cl(s)  NH₃(g) + HCl(g)
S_m^o / J mol^-1
NH₄Cl(s) 94.85
NH₃(g) 192.77
HCl(g) 186.90

• A) +474.52 J K^-1 mol^-1
• B) 284.82 J K^-1 mol^-1
• C) -100.72 J K^-1 mol^-1
• D) +88.98 J K^-1 mol^-1

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