Place the following ionic compounds in order from lowest to highest lattice enelNaClKCI CaO MgOAlPO MgO < CaO < AIP < NaCl < KCIO NaCl < KCI < MgO < CaO < AIPO KCI < NaCl < MgO < CaO < AIPO AIP < CaO<MgO< NaCl < KCIO KCI < NaCI < CaO < MgO < AIP

Lattice Energy is the energy required to completely separate the one mole of the solid ionic compound into gaseous ionic constituents. Ionic solids are - NaCl as Na+ Cl- KCl as K+ Cl- CaO as Ca2+ O2- MgO as Mg2+ O2- AlP as Al3+ P3-◆ Larger the magnitude of charge on the ions, greater will be the attractive forces between the ions. Consequently, the lattice enthalpy will be high. Therefore, lattice enthalpy increases as we move from uni-univalent ionic solids (MX) to uni-bivalent ionic solids (MX2). Thus, Lattice Enthalpy order will be- (NaCl , KCl) < (CaO, MgO) < AlP ◆ Larger the bond length, weaker the bonds and hence, low lattice enthalpy. As, the ionic solids with larger bond length have weak bond strength. Therefore, it is easy to separate the ionic compounds into constituent ions with less energy. Hence, the molecules will have Low lattice enthalpy. As, KCl has larger bond length than NaCl, therefore, KCl have low lattice enthalpy than NaCl. As, CaO has larger bond length than MgO, therefore, CaO have low lattice enthalpy than MgOl. So, Order of Lattice Enthalpy is KCl < NaCl <CaO < MgO < AlP (Option 5 is correct)

Science

Chemistry

Place the following ionic compounds in order from lowest to highest lattice ener NaCl KCI CaO MgO AIP O MgO < CaO < AlP < NaCI < KCI O NaCI < KCI < MgO < CaO < AIP O KCI < NaCI < MgO < CaO < AIP O AIP < CaO < MgO < NaCl < KCI O KCI < NACI < CaO < MgO < AIP

Place the following ionic compounds in order from lowest to highest lattice ener NaCl KCI CaO MgO AIP O MgO < CaO < AlP < NaCI < KCI O NaCI < KCI < MgO < CaO < AIP O KCI < NaCI < MgO < CaO < AIP O AIP < CaO < MgO < NaCl < KCI O KCI < NACI < CaO < MgO < AIP

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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