Maxwell-Boltzmann Distribution Curve - Temperature Maxwell-Boltzmann distribution curve A?Maxwell-Boltzmann distribution curve?is a graph that shows the distribution of?energies?at a certain...
Measuring the Rate of a Reaction Reaction rate The?rate of reaction?is the speed at which a chemical reaction takes place and has units?mol dm-3?s-1?or?mol dm-3?min-1 The rate of a reaction ...
Bond Enthalpies The amount of energy required to break one mole of a?specific?covalent bond in the gas phase is called the bond dissociation energy Bond dissociation energy (E) is usually ju...
Hess' Law Calculations You must make sure that you can apply Hess' Law effectively and calculate enthalpy changes in different situations Remember - it is the data that is important Check wh...
Using Hess' Law Calculating ΔHr?from ΔHf?using Hess’s Law energy cycles The products can be directly formed from the elements =?ΔH2 OR The products can be indirectly formed from the elements...
Calorimetry Measuring enthalpy changes Calorimetry?is the measurement enthalpy changes in chemical reactions A simple?calorimeter?can be made from a?polystyrene drinking cup, a?vacuum flask?...
Enthalpy Changes The total chemical energy inside a substance is called the?enthalpy?(or heat content) When chemical reactions take place, changes in chemical energy take place and therefore...
作為英國方向的“塔尖尖”，牛津大學一直是很多同學夢寐以求的學術天堂。 像牛津這樣的G5精英強校，究竟喜歡怎樣的學生？已經收獲牛津大學物理專業(yè)offer的翰林學員L同學的經歷，或許能給你一些參考。 翰林L同學 牛...
Energy Level Diagrams An energy level diagram is a diagram that shows the energies of the reactants, the transition state(s) and the products of the reaction as the reaction proceeds ( calle...
在飛速發(fā)展的現(xiàn)代社會，無處不充斥著“投資”,無論是對事業(yè)的投資，還是對生活的投資,我們都需要擁有詳細規(guī)劃的能力,而商賽是讓同學們提前進行全方位商業(yè)模擬,感受真實投資環(huán)境的最優(yōu)選擇。 翻看許多“大佬”的高中經...
在全球疫情下，很多地區(qū)的托福、雅思考試隨時會面臨取消，越來越多的海外院校宣布，其他的語言考試可以替代托福、雅思，比如英國大學認可的Duolingo多鄰國、朗思語言考試介紹。 什么是多鄰國英語考試 多鄰國英語...
Influence of Intermolecular Forces Properties of water Hydrogen bonding in water, causes it to have?anomalous properties?such as high melting and boiling points, high surface tension and a h...
