(a) Determine ΔrH° for the reactions of SrO and BaO with water, given that values of ΔfH°(298K) for SrO(s), BaO(s), Sr(OH)2(s), Ba(OH)2(s) and H2O(1) are -592.0, -553.5, -959.0, -944.7 and —285.5 kJ mol-1 respectively,
(b) Compare the values of ΔrH° with that for the reaction of CaO with water (eq. 12.5), and comment on factors contributing to the trend in values.
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