Energy cycles answers

IB Chemistry: Energy cycles answers

Answers to Energy cycles questions 1. ΔH⦵solution(KCl) = ΔH⦵lattice enthalpy(KCl) + ΔH⦵hydration(K+) + ΔH⦵hydration(Cl–)ΔH⦵solution(KCl) = +720 + (–340) + (–359) = +21 kJ mol-1This differs by 3.78 kJ mol-1 (22%) from the value given in Section 19.(b) ∆Hf(RbCl) = ∆Hat(Rb) + ∆Hat(Cl) + ∆HIE(Rb) + ∆HEA(Cl) + ∆Hlatt(RbCl)– 431 = + 85.8 + 121 + 403 + (– 349) + ∆Hlatt(RbCl)∆Hlatt(RbCl)...

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