问题详情

反应2HCl(g)=H2(g)+Cl2(g)的△fGθm =190.44 kJ·mol-1，则HCI(g)的△rGΘm为

A.-95.22kJ·mol-1 B. +95.22kJ·mol-1

C.-190.44kJ·mol-1 D. +190.44kJ·mol-1

请帮忙给出正确答案和分析，谢谢！