A.理想氣體B.孤立體系C.封閉體系D.敞開體系
A.CH(g)+2O2(g)CO2(g)+2H2O(l) B.2CH(g)+4O2(g)2CO2(g)+4H2O(l) C.CH(g)+2O2(g)CO2(g)+2H2O(g) D.2CH(g)+4O2(g)2CO2(g)+4H2O(g)
A.1molN2(g)和3molH2(g)反應(yīng)可放出92.2KJ的熱量; B.在標(biāo)況下,1molN2(g)和3molH2(g)完全作用后,生成2molNH3(g)可放出92.2kJ的熱; C.按上述計量關(guān)系進(jìn)行時生成1molNH3(g)可放熱92.2kJ; D.它表明在任何條件下NH3的合成過程是一放熱反應(yīng)