Why does CaO have a higher lattice energy than NaF?
Because the product of the charges, Q1Q2, appears in the numerator of Equation 8.4, the lattice energy will increase dramatically when the charges of the ions increase. Thus, we expect the lattice energy of CaO, which has 2+ and 2– ions, to be the greatest of the three. The ionic charges in NaF and CsI are the same.
Which shows the highest lattice energy CaO?
MgO is the correct answer because lattice energy is directly proportional to product of charge and inversly propornal to r^2 .
Why is the lattice energy of MgO higher than NaF?
The lattice energy of an ionic compound increases with increase in charge on the ions and decrease with the sum of the ionic radiii. The charges on the two ions in MgO (Mg2+ and O2- ions) is twice than that on the two ions in NaF (Na+andF- ions). therefore, MgO has a higher lattice energy than that of NaF.
What is the difference between the lattice energy of CaO and K2O?
The lattice energy of CaO(s) is -3,460 kilojoules per mole; the lattice energy for K2O is -2,240 kilojoules per mole. Account for this difference.
Why is the lattice energy of MgBr2 higher than mg?
If the ions are packed close together then its lattice energy will be higher and higher charge will result in higher lattice energy. The charge of Ca is +2 and O is -2 but in MgBr2, charge on Mg is +2 while on Br it is -1.
Which has a higher lattice energy MgO or KCl?
Mgo has a higher magnitude of lattice energy than kcl. Does MgO or MgCl2 have a higher lattice energy? MgCl2 consists of 3 ions in total, whereas MgO has 2 ions. as there are 2 Cl ions against one O ion the lattice energy is higher in case of MgCl2.
What is the relationship between charge density and lattice energy?
It is also the energy released for the reverse process of settling of isolated ions into the solid lattice. Greater the charge densities of ions higher the electrostatic interaction and so higher the lattice energy by magnitude. A smaller anion/cation with more charges will have higher charge density.
Why is the lattice energy of AlCl3 higher than NaCl?
Out of NaCl and AlCl3, the lattice energy of AlCl3 is higher than the lattice energy of NaCl. As the positive charge on Al is higher than Na, therefore the bond formed between Al-Cl would be stronger than Na-Cl, which is the main reason behind its higher lattice energy. What is the lattice energy of LiCl?