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WorksheetsBORN -HABER CYCLE
Total questions: 10
Worksheet time: 3hrs 30mins
Identify the enthalpy change represented by letter g.
Enthalpy of formation
Enthalpy lattice of formation
Electron affinity of bromine
Enthalpy of atomisation of zinc
First electron affinity of an element is usually ________ and second electron affinity is ____________.
exothermic, endothermic.
exothermic, exothermic.
endothermic, endothermic.
endothermic, exothermic.
What enthalpy change does the number 4 represent?
Formation
1st ionisation energy of Na
1st electron affinity of Na
Atomisation of Na
Which equation represents the process that occurs when the standard enthalpy of atomisation of iodine is measured?
½ I2 (s) → I (g)
I2 (s) → 2I (g)
½ I2 (g) → I (g)
I2 (g) → 2I (g)
Enthalpy change is represented by step y ?
Enthalpy of formation calcium bromide
Enthalpy of atomisation of calcium
1st electron affinity of bromine
Enthalpy of atomisation of bromine
Calculate the enthalpy change represented by X
+695kJ/mol
-695kJ/mol
-635kJ/mol
-635kJ/mol
What is the definition of lattice enthalpy?
Heat released when one mole of solid ionic compound is formed from its gaseous ions.
Heat released when an ionic lattice is formed from one mole of its gaseous ions.
Heat released when one mole of an ionic lattice is formed from ions in their standard states.
Heat released when an ionic lattice is formed from one mole of gaseous atoms.
Given the Born-Haber cycle below, which of the following enthalpy change is not represented by steps a-g
Enthalpy of formation
Enthalpy of atomization of calcium
1st electron affinity of bromine
2nd electron affinity of bromine
Mg (g) --> Mg+ (g) + e-
Ionisation
Combustion
Formation
Hydration
½ H2 (g) + ½ Cl2 (g) --> HCl (g)
Formation
Combustion
Atomisation
Ionisation
