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CIE A Level Chemistry復(fù)習(xí)筆記5.1.3 Constructing Born-Haber Cycles
Constructing Born-Haber Cycles To calculate the lattice energy (ΔHlatt?) of an ionic compound, a?Born-Haber cycle?is used, which is a special type of energy cycle To find the ΔHlatt??of an ionic co...
CIE A Level Chemistry復(fù)習(xí)筆記5.1.2 Electron Affinity & Trends of Group 16 & 17 Elements
Electron Affinity Electron affinity The?first electron affinity?(EA1) is the enthalpy change when?1 mole?of?electrons?is added to?1 mole?of?gaseous atoms,?to form?1 mole?of?gaseous ions?each with a...
CIE A Level Chemistry復(fù)習(xí)筆記5.1.1 Lattice Energy & Enthalpy Change of Atomisation
Lattice Energy & Enthalpy Change of Atomisation Enthalpy change?(ΔH) refers to the amount of heat energy?transferred?during a chemical reaction, at a constant pressure Enthalpy change of atomis...
CIE A Level Chemistry復(fù)習(xí)筆記4.1.6 M + 2 Peak
Detecting Bromine & Chlorine Atoms Using M+2 Peak The presence of bromine or chlorine atoms in a compound gives rise to a?[M+2]?and possibly?[M+4]?peak Chlorine Chlorine exists as two isotopes,...
CIE A Level Chemistry復(fù)習(xí)筆記4.1.5 M + 1 Peak
Determine Number of Carbon Atoms Using M+1 Peak The?[M+1]?peak is caused by the presence of the carbon-13 (13C) isotope in the molecule Carbon-13 makes up approximately 1.1% of all carbon atoms The...
