rate of a chemical reaction

A catalyst increases the rate of a chemical reaction by lowering the activation energy, which is the barrier to be overcome in going between the initial and final state.

酶的催化作用是通过大幅度降低化学反应的活化能。使活化分子相对增多，反应速度加快。

This is a discussion on improving the determination of chemical reaction rate in the famous study on kinetics of reaction between ammonium persulphate and kalium iodide.

本文改进了著名的过二硫酸铵与碘化钾反应动力学研究中反应速度的测定，并将测定改为微型化学实验技术。

( chemistry) the law that states the rate of a chemical reaction is directly proportional to the molecular concentrations of the reacting substances.

（化学定律）：化学反应的速度与其反应物质的分子浓度成正比。

Thermal sensitivity is a measurement on how easily fast chemical reaction will happen. The essence of studying thermal sensitivity of energetic materials is to find the relationship of time to maximum rate ( TMR) and the decomposition temperature.

热感度是物质在热作用下发生快速化学反应难易程度的度量，求取含能材料的热感度的本质是求取诱导期TMR与温度的关系。

The effects of couple-stress parameters a, η and chemical reaction rate constant λ on those quantities above are discussed.

分析了偶应力参数a，η和化学反应率参数λ对上述量的影响。

Catalyst: Any substance of which a small proportion notably affects the reaction rate of a chemical reaction without itself Being changed or consumed.

催化剂：化学术语，能增加反应速率而其本身并不消耗的一种物质。