Lattice Enthalpy
Chemistry ⇒ Thermochemistry and Energetics
Lattice Enthalpy starts at 12 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Lattice Enthalpy.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
Calculate the lattice enthalpy of KCl using the following data (all values in kJ mol-1): Enthalpy of formation of KCl = -436, Sublimation of K = +89, Ionization energy of K = +419, Bond dissociation of Cl2 = +242, Electron affinity of Cl = -349.
Calculate the lattice enthalpy of NaCl using the following data (all values in kJ mol-1): Enthalpy of formation of NaCl = -411, Sublimation of Na = +108, Ionization energy of Na = +496, Bond dissociation of Cl2 = +242, Electron affinity of Cl = -349. (Assume all steps are for 1 mole of NaCl.)
Describe how the Born-Haber cycle applies Hess's law to determine lattice enthalpy.
Describe the difference between lattice enthalpy of formation and lattice enthalpy of dissociation.
Describe the steps involved in the Born-Haber cycle for the formation of NaCl.
Explain the effect of increasing ionic charge on lattice enthalpy, giving an example.
Explain why lattice enthalpy is not measured directly but calculated using the Born-Haber cycle.
Explain why the lattice enthalpy of Al2O3 is much higher than that of NaCl.
Explain why the lattice enthalpy of LiF is higher than that of CsI.
Explain why the lattice enthalpy of NaCl is less than that of MgO.
State the factors affecting lattice enthalpy.
State the relationship between lattice enthalpy and solubility of ionic compounds.
The lattice enthalpy of NaCl is -787 kJ mol-1. What does the negative sign indicate?
The lattice enthalpy of NaCl is higher than that of KCl. Give a reason for this observation.
What is lattice enthalpy?
Which has a higher lattice enthalpy: CaO or K2O?
Which process is represented by the lattice enthalpy of dissociation?
