2Cu(s)+1202(g)→Cu2O(s)△H26=-169kJmo1 Cu2O(s)+1202(g)→2CuO(s)△H30=-145kJmo 2Cu(s)+O2(g)→2CuOs)△H16=-314 kJ mol-1 状态I 2Cu(s)+02g) △H26=-169 kJ. mol-l △H1=-314kJmo1 状态Ⅲ H Cu2O(s)+1202(g) △H2=-145 kJ. mol-l 状态Ⅲ cUo(s)2Cu(s) + O Cu(s) + O2(g) → 2CuO(s) 2CuO(s) ∆H1θ = −314 kJ⋅mol−1 2Cu(s) + 1/2O Cu(s) + 1/2O2(g) → Cu2O(s) ∆H2θ = −169 kJ⋅mol−1 Cu2O(s) + 1/2O O(s) + 1/2O2(g) → 2CuO(s) 2CuO(s) ∆H3θ = −145 kJ⋅mol−1 H ∆H1θ = −314 kJ⋅mol−1 ∆H2θ = −169 kJ⋅mol−1 ∆H3θ = −145 kJ⋅mol−1 状态I 2Cu(s) + O2(g) 状态III Cu2O(s) + 1/2O2(g) 状态II 2CuO(s)