下列反應(yīng)的Qp和Qv有區(qū)別嗎? (1)2H2(g)+O2(g)=2H2O(g) (2)NHHS(s)=NH3(g)+H2S(g) (3)C(s)+O2(g)=CO2(g) (4)CO(g)+H2O(g)=CO2(g)+H2(g)
下列各符號(hào)分別表示什么意義?