Vennemann TW, Smith HS (1990) The rate and temperature of reaction of ClF3 with silicate minerals, and their relevance to oxygen isotope analysis. Chem Geol 86:83-88Vennemann, T.W., Smith, H.S., 1990. The rate and temperature of reaction of ClF3 with sil- icate minerals, and their...
In an experiment to test the effect of temperature on the rate of a chemical reaction, the temperature is the ___. A. independent variable B. dependent variable C. control variable D. constant variable 相关知识点: 试题来源: 解析 A。在测试温度对化学反应速率影响的实验中,温度是自变量。选项...
A. lowering the temperature. B. decreasing the concentration of reactants. C. adding a catalyst. D. reducing the pressure. 相关知识点: 试题来源: 解析 C。解析:添加催化剂可以提高化学反应的速率。选项 A 降低温度通常会使反应速率减慢。选项 B 降低反应物浓度也会使反应速率减慢。选项 D 降低压力对...
She has taught science at the high school and college levels. Cite this lesson The rate of a chemical reaction is affected by temperature. Explore this process, learn about the Arrhenius equation, review the exponential factor, and define frequency factor. ...
So, this study reports two examples: one is a process to calculate an adiabatic temperature rise and a reaction rate for evaluate thermal stress. And the other is how to control quality of mass concrete with reducing internal restraining stress through finite analysis.As a result, a thermal ...
aThe rate of the BOD reaction depands on the type of wastwe present and the temperature and is assumed to vary directly with the amount of organic matter present.. 人体反应depands的率在wastwe礼物和温度的种类和假设直接地随相当数量有机物礼物变化。[translate]...
In a chemical reaction, if the temperature is increased, the reaction rate usually ___. A. decreases B. increases C. remains constant D. becomes unpredictable 相关知识点: 试题来源: 解析 B。温度升高,化学反应速率通常会增加。A 选项“decreases”表示降低,错误;C 选项“remains constant”表示保持...
of KrF,.Label E and AH, on the diagram.Assume the reaction proceeds in one step.A energy reactants/kJ mol progress of reaction[2](ii) Explain, in terms of activation energy, E, and the collision of particles, how an increase in temperature affects the rate of a chemical reaction. ...
Abstract We have measured the rate constants for the reaction of O + ions with NO from room temperature to 1400 K. The reaction is slow (k=8×10 −13 cm 3 s −1 ) at room temperature and the rate constant increases to 2.6×10 −12 cm 3 s −1 at 1400 ...
aThe rate of the BOD reaction depends on the type of waste present and the temperature and is assumed to vary directly with the amount of organic matter present.. 人体反应的率取决于废物礼物和温度的种类和假设直接地随相当数量有机物礼物变化。[translate]...