Learn about the rate of reaction. Understand the factors affecting the rate of reaction and see how catalyst, concentration, temperature and...
IGCSE Rate of Reaction 讲义 http://www.bgyclub-edu.com.cn 顺德碧桂园业主论坛 http://bgyclub.5d6d.com SECTIONS on this page: 1. What do mean by rate/measurement? * 2. Collision theory of reaction * 3. Factors: 3a concentration, 3b pressure, 3c stirring, 3d particle size/surface area,...
The reaction rate is usually expressed in terms of change in concentration per unit time. What unit is commonly used for reaction rate? A. mol/L B. mol/L·s C. mol D. L/mol 相关知识点: 试题来源: 解析 B。反应速率通常用单位时间内浓度的变化来表示,单位是 mol/L·s。选项 A 是浓...
题目【题目】7. The rate expression of a reaction is: rate =k[ A][ B][C]. What is the unit of k?()A. moldm^(-3)s^(-1) B. s-1C. mol^(-2)dm^6s^(-1) D. mol^(-1)dm^3s^(-1) 相关知识点: 试题来源: 解析 【解析】C ...
reaction rate 美 英 un.反应速率;反应速度;反应率 网络化学反应速率;反应遣度;反应的速率 英汉 网络释义 un. 1. 反应速率 2. 反应速度 3. 反应率 例句 释义: 全部,反应速率,反应速度,反应率,化学反应速率,反应遣度,反应的速率 更多例句筛选
• Advantage: higher T increases rate of reaction • Because average kinetic energy of molecules increases, so more molecules have energy higher than activation energy • Disadvantage: higher T decreases yield • Because for Harber process, ΔH is negative, when T increases, ΔS⦵surroundin...
1. Hong Kong rates as one of the biggest trade centers in the world. 香港是世界上最大的贸易中心之一。 名词 1. rate的意思 1. The room rates at this motel range from $30 to $50 per day. 这个汽车旅馆的房价每天从三十美元到五十美元不等。
reaction rate, inchemistry, the speed at which achemical reactionproceeds. It is often expressed in terms of either theconcentration(amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time. Alternatively,...
百度试题 结果1 题目 Forachemicalreaction,iftheunitoftherateconstantkismoldm-3·S-1,thenthereactionorderis() A. 0 B. 3/2 C. 1 D. 1/2 相关知识点: 试题来源: 解析 A 反馈 收藏
reaction rate increases with the degree of mixing (contact) between the reactants (depends on the reactant’s phase) • Temperature – the reaction rate increases with increasing the temperature (increases the collision frequency and the average kinetic energy of the molecules) – The reactants...