Question

25℃、101 kPa下，碳、氫氣、甲烷和葡萄糖的燃燒熱依次是393.5 kJ/mol、285.8 kJ/mol、890.3 kJ/mol、2800 kJ/mol，則下列熱化學方程式正確的是  (    )

A．C(s)+O₂(g)＝CO(g)                   △H = ―393.5 kJ/mol

B．2H₂(g)+O₂(g)＝2H₂O(l)                 △H = +571.6 kJ/mol

C．CH₄(g)+2O₂(g)＝CO₂(g) +2H₂O(g)         △H = ―890.3 kJ/mol

D．C₆H₁₂O₆(s) +6O₂(g)＝6CO₂(g)+6H₂O(l)     △H = ―2800 kJ/mol

 

Answer 1

【答案】

D

【解析】略