A catalyst is a substance that ___. A. slows down a reaction B. is consumed in the reaction C. increases the rate of a reaction without being consumed D. has no E. ffect on the reaction rate 相关知识点: 试题来源: 解析 C。原因:“A catalyst is a substance that increases the rat...
When a catalyst is added to a reaction at equilibrium, it ___ the equilibrium position. A. shifts B. changes C. does not change D. destroys 相关知识点: 试题来源: 解析 C。催化剂只能改变反应速率,不能改变平衡位置。选项 A“shifts”和选项 B“changes”都错误;选项 D“destroys”破坏也不...
It initiates the reaction C It increases the average kinetic energy of the molecule D It alters the rate of reaction Solution Verified by Toppr Some properties of catalysts are: 1. A catalyst improves the speed of a reaction. 2. A catalyst takes part in the reaction even though it will no...
Step by step video, text & image solution for A catalyst accelerates the reaction by……… the activation energy of the reaction, or by forming an ………..with………..activation energy. by Chemistry experts to help you in doubts & scoring excellent marks in Class 12 exams.Updated on:21/...
Refers to a procedure to catalyze a reaction. Using a catalyst based on a metal of Group 4 (according to the IUPAC).Claim 1: a process to produce Methanol directly Esterified Fatty acyl wherein a Fatty Acid is reacted with an alkali metal Methanol or a Methanol Ammonium in the presence ...
Question 1The addition of a catalyst to a chemical reaction A A. lowers the activation energy required for the reaction to occur. B. lowers the chemical energy of the products. C. lowers the chemical energy of the reactants. D. lowers the value of the enthalpy change for the reaction. ...
17 How does a catalyst increase the speed of a reaction? D A by increasing the collision frequency of particles B by increasing the speed of the particles C by increasing the temperature of the reaction D by lowering the activation energy 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
They serve to reduce the activation energy required for a reaction and thus increase the reaction rate giving us more products in a shorter period of time than would be possible int eh absence of the catalyst. In biology, the primary catalysts are enzymes as many reactions necessary for life ...
For a chemical reaction to occur, the reactants have to meet threshold energy called the activation energy. A catalyst is a substance that speeds up...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our exper...
In a continuous process for reacting an organic compound with hydroperoxide in the presence of a catalyst, the reaction is carried out in a reactor assembly comprising at least two reactors connected in parallel.Ulrich MullerJoaquim TelesNorbert Rieber...