September 2018 1 36 Report
1. Diperkirakan pada lapisan stratosfir terjadi reaksi berikut :
HO + Cl₂ --> HOCL + Cl
Tentukan perubahan entalpi reaksi tersebut jika diketahui
Cl₂ --> 2Cl delta H = +242
H₂O₂ --> 2OH delta H = +134
H₂O₂+2Cl --> 2HOCL delta H = -209

2. Diketahui :
Zn + S --> ZnS delta H = -206
Zn + 2O₂ --> ZnSO₄ delta H = -777
Tentukanlah Entalpi Pembentukan ZnSO₄ !

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