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The ΔfG∘ for (NH4Cl,s) at 310 K is −x kJ mol−1.Given: ΔfH∘(NH4Cl,s)=−314.5 kJ mol−1;ΔrCP=0S∘N2(g)=192 J K−1 mol−1; S∘H2(g)=130.5 J K−1 mol−1S∘Cl2(g)=223 J K−1mol−1; S∘NH4Cl(s)=99.5 J K−1 mol−1All given data at 300 K. Find the magnitude of x.

Answer» The ΔfG for (NH4Cl,s) at 310 K is x kJ mol1.

Given: ΔfH(NH4Cl,s)=314.5 kJ mol1;ΔrCP=0SN2(g)=192 J K1 mol1; SH2(g)=130.5 J K1 mol1SCl2(g)=223 J K1mol1; SNH4Cl(s)=99.5 J K1 mol1

All given data at 300 K. Find the magnitude of x.




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