Question

17. Set upa thermodynamic cycle for determining the enthalpy of hydration of Ca ions using the Pa 81 Table zc. following data: AsubH(Ca,s) 178.2 kJ/mol; Aion H(Ca,g) = 589.7 kJ/mol (first) Aion H(Ca.g) = 1145 kJ/mol (second); AvapH(Br2,l) = 30.91 kJ/mol AatH(Br2.g)= 192.9 kJ/mol; AcgH(Br.g)= -331.0 kJ/mol AhyaH(Br ,g) -289 kJ/mol [16] AsolH(CaBr2,s) =-103.1 kJ/mol;

Answer 1

CaBrns) Ca (6) Avgtn) Ca (a) Dat 286) Ca a) (CAA 2 X IE 2 BY 2t 2X Atyt Ca 2 6 (ar) 2+ Ca 4/on # Ca,gfi Ai(eag) : 1nt ieniatio gy 1.E.! neeand ieniraten mengy 1 . F enyy A L Lattiu energy to frablim 4 CLOV Aoub (Ca,s) + I£, + I As Cabr )/4 - ) Ayg#Cat 14 /k +2X A Aya# Catt /03.1 1 X T1t16.08 7t Co2+ 671 tAyt 2)/03./ = ARyd Catt - - 999 8/ K/anol .1 hydhation t calt bm u999/