1£®(2020·É½¶«¾í£¬T₁₈₍₁₎)ÒÔCO₂¡¢H₂ΪԭÁϺϳÉCH₃OHÉæ¼°µÄÖ÷Òª·´Ó¦ÈçÏ£º

¢ñ.CO₂(g)£«3H₂(g)CH₃OH(g)£«H₂O(g)¡¡

                         ΔH₁£½£­49.5 kJ·mol^£­1

¢ò.CO(g)£«2H₂(g) CH₃OH(g)¡¡

                         ΔH₂£½£­90.4 kJ·mol^£­1

¢ó.CO₂(g)£«H₂(g) CO(g)£«H₂O(g)¡¡ΔH₃

ÔòΔH₃£½____________kJ·mol^£­1¡£

[½âÎö]¡¡ΔH₃£½ΔH₁£­ΔH₂£½£«40.9 kJ·mol^£­1¡£

[´ð°¸]¡¡£«40.9