• 2022-06-12
    已知,SmӨ(SO2)=248.2 J·mol-1·K-1,SmӨ(O2)=205.2 J·mol-1·K-1,SmӨ(SO3)=256.8 J·mol-1·K-1。则反应2SO2(g)+O2(g)⇌2SO3(g)的ΔrSmӨ为J·mol-1·K-1
    A: -196.6
    B: 196.6
    C: -188
    D: 188