(a) Given that the enthalpy change associated with the addition of H (g) to H 2 O(g) is 690 kJmol 1 , and hyd H o (H , g) 1091 kJmol 1 , calculate the enthalpy change associated with the solvation of H 3 O (g) in water (b) Outline how the nickelmetal hydride battery works, giving equations for the ...

a To calculate the enthalpy change associated with the solvation of H3Og in water we can use the following thermochemical equations and Hesss law H2Og Hg H3Og H 690 kJmol Given H3Og H3Oaq H hydHoH g 1 ...

(a) Given that the enthalpy change associated with the addition of H+(g) to H 2 O(g) is...

Question:

(a) Given that the enthalpy change associated with the addition of H+(g) to H₂O(g) is –690 kJmol⁻¹, and Δ_hydH^o(H⁺, g) = −1091 kJmol⁻¹, calculate the enthalpy change associated with the solvation of [H₃O]⁺(g) in water.

(b) Outline how the nickel–metal hydride battery works, giving equations for the reactions at each electrode during charging and discharging. Why are NiMH batteries replacing NiCd batteries in electronic devices?

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