反应速率

METHODS The residual concentrations of sodium formaldehyde sulfoxylate in the solutions were determined by iodimetry, the datas were fitted by linear regressions and then ...

在高精度电热恒温箱中在不断通入空气或医用纯氧的情况下，采用碘量法测定甲醛合次硫酸氢钠在水溶液中不同时刻的浓度，作出降解曲线，将测得的数据进行降解动力学方程的拟合并获得动力学参数，并计算反应速率常数。

It is found that the higher the calcination temperature of MgCO3,the smaller the specific surface area of MgO is,so is the initial reaction rate of sulphation of MgO.

实验表明，菱镁矿(主要成分MgCO3)的煅烧温度越高，其煅烧产物MgO的比表面积越小，因而MgO硫酸盐化的初始反应速率越低。

The kinetics process and temperature impact of natural groundwater denitrified by sulfur autotrophic was investigated. The results revealed that the denitrification rate of up-flow sulfur autotrophic denitrification filter followed a half-order kinetics model; and the reaction rate constant was mainly affected by the temperature. Based on the Arrhenius calculation, the activated energy was 80.38 kJ/mol.

研究实际地下水硫自养反硝化动力学过程，考察季节因素对动力学的影响，实验结果表明，地下水升流式硫自养滤柱反硝化动力学符合1/2级动力学模型，其反应速率常数受温度的影响很大，用阿仑尼乌斯方程计算硫自养反硝化活化能为80.38 kJ/mol。

The results show that the oxide cathode can be deoxidized to pure Ni3Sn2 at the voltage range of

结果表明，当电解电压在2.8~3.2V之间时，可制备出纯相的Ni3Sn2合金粉末，且电解电压越高，电脱氧反应速率越快。

In this article, the immobilized conditions and the proportion of two enzymes have an effect on the reaction rate.

本文研究了双酶比例和固定化条件对两种共固定化酶反应速率的影响。

The same time, some buyers were older, most of them intent on the do not want to loan, and their reaction rate increases more strongly.

与此同时，一些买家包括老年人，其中大部分是意图对不想贷款，其反应速率增加更强烈。

Owing to stress release, microcracks appear in growing process, redounding to continuous penetration of H2O through the product layer into LiH bulk for further reactions.

在相同条件下，LiH表面不同点位的反应速率不尽相同。

Three initiators, ammonium persulfate / DMA, ammonium persulfate / urea / ammonia liquor, ammonium persulfate / triethanol amine were applied to the polymerization at 50癈, 55 癈 and 60癈, and the influence of ratio oxidant / reductant on reaction rate and molecular weight of polymer were studied.

本文研究了过硫酸铵／DMA、过硫酸铵／氨水／尿素、过硫酸铵／三乙醇胺三种引发体系在50、55、60℃下，不同氧化剂、还原剂配比条件对反应速率、分子量的影响。

Packed bed electrodes can reach higher current densities at relatively low electrode polarizations,which is favorable to mitigating the inconsistency between reaction rate and selectivity.

填充床电极具有大的内表面，能在相对低的极化下，达到较高的表观电流密度，有利于缓解反应速率和选择性之间的突出矛盾。

In order to investigate the corrosion of power plant chimney by the condensed sulfuric acid from the flue gas,corrosion of C30 concrete exposed to 15% sulfuric acid solution at 80℃ was studied.

研究了电站烟囱C30混凝土在80℃、质量分数为15%硫酸溶液浸泡条件下的腐蚀规律，根据Fick扩散方程和反应速率方程，提出一个简化的移动边界腐蚀模型。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。