已知CH3COOH(1),CO2(g),H2O(1)的标准摩尔生成焓ΔfHm?(298.15K)分别为-484.5,-393.5,-285.8kJ·mol-1,则CH3COOH(1)的标准摩尔燃烧焓ΔcHm?(1,298.15K)为多少kJ·mol-1


已知CH3COOH(1),CO2(g),H2O(1)的标准摩尔生成焓ΔfHm?(298.15K)分别为-484.5,-393.5,-285.8kJ·mol-1,则CH3COOH(1)的标准摩尔燃烧焓ΔcHm?(1,298.15K)为多少kJ·mol-1

A.-194.8

B.194.8

C.-874.1

D.874.1

正确答案:-874.1


Tag:物理化学 标准 时间:2022-01-03 21:16:31