27 Which definition of a drug is correct? A a substance that increases the rate of a chemical reaction and is not changed by the reaction B a protein that functions as a biological catalyst C a substance taken into the body that modifies or affects chemical reactions in the body D a chem...
apeople come from 正在翻译,请等待...[translate] aMenneking 开始[translate] aa catalyst is a substance that increases the rate of a chemical reaction without itself being used up 催化剂是增加一个化学反应的率,不用用完的本身的物质[translate]...
a对...起到重要作用 To….Plays the vital role[translate] aa substance that increases the rate of a chemical reaction without being permanently changed consumed is called 增加一个化学反应的率,不用永久被改变被消耗的物质叫[translate]
A catalyst is by definition a substance that increases the rate of approach to equilibrium of a chemical reaction in the reaction.A.without being substantially consumedB.not at all comsumedC.with decreasing significantlyD.with the change of it ’ s compo
The rate of a chemical reaction doubles for every10∘Crise of temperature. If the temperature is raised by50∘C, the rate of the reaction increases by about View Solution  Why does the rate of a reaction increase with rise in temperature?
This statement is false. 'A catalyst increases the rate of forwarding reaction but does not alter the rate of reverse rate'. This is a false...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question ...
reaction coupled to anion adsorption is presented.The analysis reveals that,if repulsive forces of appropriate strength form between unlike surface anions,replacing a fraction of the original anions in solution with one or two kinds of more inhibiting anions can increase the rate of reaction. ...
–Chemical kinetics – studies the reaction rates and mechanisms 16.1 Factors Affecting the Reaction Rate • Chemical nature of the reactants – each reaction has its own characteristic rate • Concentration – the reaction rate increases ...
What happens to the rate of most chemical reactions as the temperature decreases? What is the change in Gibbs Free Energy for the reaction where K = 11.5? ( R= 8.314x10^{-3} \frac{kJ}{mol \cdot K}) a) -2.63 kJ b) -6.05 kJ c) -3.46 kJ d) -1.28\times10^5 kJ ...
fundamental limitation is operational stability, in particular at higher reaction temperatures, which are often preferred because of an increase in reaction rate or reactant solubility, a decrease in medium viscosity or risk of microbial contamination, or a more favorable position of the reaction ...