IB DP Chemistry: HL復(fù)習(xí)筆記5.1.3 Calorimetry
Calorimetry Measuring enthalpy changes Calorimetry?is a technique used to measure changes in enthalpy of chemical reactions A?calorimeter?can be made up of a?polystyrene drinking cup, a?vacuum flas...
IB DP Chemistry: HL復(fù)習(xí)筆記5.1.2 Standard Enthalpy Change
Standard Enthalpy Change Standard conditions To compare the changes in enthalpy between reactions, all thermodynamic measurements are made under?standard?conditions These?standard conditions?are: A...
IB DP Chemistry: HL復(fù)習(xí)筆記5.1.1 Energy Changes in Reactions
Temperature & Kinetic Energy What is the difference between heat and temperature? This can be illustrated using a beaker of boiling water and a pipette: The effects of boiling water can be quit...
IB DP Chemistry: HL復(fù)習(xí)筆記4.3.6 Alloys & their Properties
Alloys Alloys are?mixtures of metals, where the metals are mixed together physically but are not chemically combined They can also be made from metals mixed with nonmetals such as carbon Ions of th...
AQA A Level Maths: Pure復(fù)習(xí)筆記2.8.3 Inverse Functions
Inverse Functions What is an inverse function? An?inverse?function?is the?opposite?to the original function An inverse function is denoted by The?inverse?of a function only exists if the fun...
IB DP Chemistry: HL復(fù)習(xí)筆記4.3.5 Trends in Melting Points of Metals
Trends in Melting Points of Metals The?strength?of electrostatic attraction can be increased by: Increasing?the number of?delocalised?electrons?per metal atom Increasing?the?positive?charges?on the...
AQA A Level Maths: Pure復(fù)習(xí)筆記2.8.2 Composite Functions
Composite Functions What is a composite function? A?composite function?is where one function is applied after another function The ‘output’?of one function will be the ‘input’?of the next on...
IB DP Chemistry: HL復(fù)習(xí)筆記4.3.4 Metallic Bonding
Metallic Bonding Metal?atoms are tightly packed together in?lattice?structures When the metal atoms are in?lattice?structures, the electrons in their outer shells are free to move throughout the st...
IB DP Chemistry: HL復(fù)習(xí)筆記4.3.3 Properties of Covalent Compounds
Properties of Covalent Compounds The physical properties of?molecular covalent compounds?are largely influenced by their?intermolecular forces If you know the type of?intermolecular forces?present ...
