(a) Determine r H for the reactions of SrO and BaO with water, given that values of f H(298 K) for SrO(s), BaO(s), Sr(OH) 2 (s), Ba(OH) 2 (s) and H 2 O(l) are 592 0, 553 5, 959 0, 944 7 and 285 5 kJ mol 1 respectively (b) Compare the values of r H with that for the reaction of CaO with water (eq 12...

To determine rH standard enthalpy change for the reactions of SrO and BaO with water we first need to write the balanced chemical equations for the reactions a Reactions SrOs H2Ol SrOH2s BaOs H2Ol BaO ...

(a) Determine r H for the reactions of SrO and BaO with water, given that values...

Question:

(a) Determine Δ_rHº for the reactions of SrO and BaO with water, given that values of Δ_fHº(298 K) for SrO(s), BaO(s), Sr(OH)₂(s), Ba(OH)₂(s) and H₂O(l) are −592.0, −553.5, −959.0, −944.7 and −285.5 kJ mol⁻¹ respectively.

(b) Compare the values of Δ_rHº with that for the reaction of CaO with water (eq. 12.5), and comment on factors contributing to the trend in values.

Equation 12.5