For an elementary reaction 2A(g) + B(g)=A2B (g),the reaction order is? A、1 B、2 C、3 D、0 点击查看答案&解析 你可能感兴趣的试题 单项选择题在大脑里对已有表象进行加工改造并形成新形象的心理过程称为A.再现B.想象C.思维D.创造 点击查看答案&解析 判断题缸内直喷发动机高压油泵在进油行程中...
For an elementary reaction the temperature dependence of the rate constant is given by the Arrhenius equationK(T) =νe^(-Ea/RT) where ν is called the preexponential factor (sometimes called prefactor) and Ea the activation energy (in kJ mol^(–1)).One can also express the activation ene...
56. For an elementary dimerization reaction of the type 2R R2, the value of the steric factor was found to be 2.5. This indicates that c.d(a)the experimentally obtained rate is 2.5 times faster than the theoretical rate.(b)ratio of the number of collisions calculated from collision theory...
For an elementary reaction, the reaction orderis same to the molecularity. A. 正确 B. 错误 如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 反馈 收藏 举报 参考答案: A 复制 纠错 举一反三 监狱对犯人的治疗中,系统地利用学习原理,增加所希望的行为出现的频率,或者减少问...
Machine learned interatomic interaction potentials have enabled efficient and accurate molecular simulations of closed systems. However, external fields, which can greatly change the chemical structure and/or reactivity, have been seldom included in curr
Heterogeneous catalysis is at the heart of chemistry. New theoretical methods based on machine learning (ML) techniques that emerged in recent years provide a new avenue to disclose the structures and reaction in complex catalytic systems. Here we review
step is the first step in the reaction mechanism. The rate law for the entire reaction, however, may be more challenging to establish when the rate-determining step is preceded by an elementary phase involving a quickly reversible reaction, frequently because of the presence of reaction intermediat...
At moderate reaction conditions (pH = 8, RT) amino groups react preferentially at the sterically less hindered site of the epoxide (route [1]) in an irreversible reaction, as schematically illustrated in Scheme 1B. The ring opening is often catalyzed by tertiary amines added to maintain the ...
To tackle this challenge, an approach involving parametrizing the reaction coordinate and minimum energy path has been proposed38, however, leading to a low prediction accuracy. Another machine learning model promising to atomistic modeling is graph neural network (GNN), which has shown great success...
Dual-atom catalysts, particularly those with heteronuclear active sites, have the potential to outperform the well-established single-atom catalysts for oxygen evolution reaction, but the underlying mechanistic understanding is still lacking. Herein, a l