Question

下列關(guān)于熱化學反應的描述中正確的是

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A．已知H⁺(aq)+OH^-(aq)==H₂O(l)；△H＝-57.3kJ·mol^-1，則H₂SO₄和Ba(OH)₂反應的反應熱△H=2×(-57.3)kJ·mol^-1
B．燃料電池中將甲醇蒸氣轉(zhuǎn)化為氫氣的熱化學方程式是CH₃OH(g)+1/2O₂(g)==CO₂(g)+2H₂(g)； △H=-192.9 kJ·mol^-1，則CH₃OH的燃燒熱為192.9 kJ·mol^-1
C．H₂(g)的燃燒熱是285.8 kJ·mol^-1，則2H₂O(g)==2H₂(g)+O₂(g)；△H=+571.6 kJ·mol^-1
D．葡萄糖的燃燒熱是2800 kJ·mol^-1，則1/2 C₆H₁₂O₆ (s)+3O₂ (g)==3CO₂ (g)+3H₂O ( l )； △H=-1400 kJ·mol^-1

Answer 1

D