化学求解答 请问这题的△H怎么求??

化学求解答 请问这题的△H怎么求??如图求过程
2025-04-14 17:01:10
推荐回答(2个)
回答1:

CO(g)+1/2O2(g)=CO2 (g) △H=-283kJ/mol ①
2H2(g)+O2(g)+2H2O(l) △H=-572kJ/mol ②
CH3OH(g)=2H2(g)+CO(g) △=+116kJ/mol ③
③+②+①得
CH3OH(g)+3/2O2(g)=CO2(g)+2H2O(l) △H=116-572-283=-739kJ/mol

回答2:

=-283-286x2
=-855 kJ/mol