Question

question 2&3

mal sc... Canvas Butte Film Book Works cited for en... O (6) Backstreet Boy... Which reaction below represents the electron affinity of Li? Li(g) + e-Li"(s) Li(g) - Li*(g) + Lilg) + - Li*(g Li*(g) + e-Li(g) None of the above D Question 3 3 pts Which of the following ionic compounds would be expected to have the most exothermic lattice energy? Rbl RbBr ORCI ORDF They all have the same lattice energy

Answer 1

Page No. Date 9|| Which Deaction below deporesents affinity of 19 ? Electron affinty is the change in the energy Loka Deutsal átems by accepting electron and forming a negative ion Consides an atom which is es gaseous state. mog te 2 mcg). As a result of this change negative (m) ion forms. It is the energy of atoms in gaseous phase for Li the correct representation of electron attesity is i og te lig Energy of electzon affinity of this reaction is 259.8 kJ/mol. so the cooxect option & A. 3) || Which of the following conic compounds would be expected to have the most exothermic I lattice energy ? The compound which has high change, small Codec radius, great bonding Storength will bave the most exotheomic lattice esergy.

| For exothermic process, lattice enengy is negative. || for endothermic process, lattice en ongly 85 positive. least negative lattice eser au PS least exothermic most negative lattice energy is most exothermec. 1 Lattice energy of RBI = -684 kv/mde lattie energy of RbB2= -660 kJ/mole Lattice energy of Rbd -687 kJ/mole lattice energy of Rbf = -784 kJ/mole I Most negative lattice energy is - 784 kJ/mole for Rif. So 97 es most exothermic lattice energy. | Coodect option : D