Question: Using an enthalpy cycle, estimate rH. for the decomposition of K2O2 to K2O. The size of the ions are as follows, O is 140pm,Kis138pm, and

Using an enthalpy cycle, estimate rH. for the decomposition of K2O2

Using an enthalpy cycle, estimate rH. for the decomposition of K2O2 to K2O. The size of the ions are as follows, O is 140pm,Kis138pm, and O22 is 167pm. H= 845kJmol1 Ulatt=r++rkvz+z For the Kapustinskii equation for K2O2, k=v=z+=z= Hlatt(K2O)=kJmol Hlat(K2O2)=kJmol The enthalpy of decomposition, rH. for the decomposition of K2O2 to K2O= kJmol1

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