在 1000 °C 时加热钢材,用 H 2 作保护气氛时, H 2 /H 2 O 不得低于 1.34 。否则 Fe 要氧化成 FeO ,如在同样条件下改用 CO 作保护气氛,则 CO/CO 2 应超过多少起到保护作用?已知此温度下反应: CO+H 2 O (g) == CO 2 +H 2 K Θ =0.647
【单选题】If ambition is to be well regarded, the rewards of ambition—wealth, distinction, control over one's destiny—must be deemed worthy of the sacrifices made on ambition's behalf, If the tradition of ambit...