已知H2(g)+Cl2(g)==2HCl(g) ΔH=-184.6kJ·mol-
题型:选择题
问题:
已知H2(g)+Cl2(g)==2HCl(g) ΔH=-184.6kJ·mol-1,则反应HCl(g)==1/2H2(g)+1/2Cl2(g)的ΔH为 [ ]
A.+184.6kJ·mol-1
B.-92.3 kJ·mol-1
C.-369.2 kJ·mol-1
D.+92.3 kJ·mol-1
已知H2(g)+Cl2(g)==2HCl(g) ΔH=-184.6kJ·mol-1,则反应HCl(g)==1/2H2(g)+1/2Cl2(g)的ΔH为 [ ]
A.+184.6kJ·mol-1
B.-92.3 kJ·mol-1
C.-369.2 kJ·mol-1
D.+92.3 kJ·mol-1