The table shows the enthalpy changes needed to calculate the lattice energy of potassium oxide, K 2

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The table shows the enthalpy changes needed to calculate the lattice energy of potassium oxide, K₂O.

a. Copy the incomplete Born–Haber cycle shown below. On the lines A to E of your copy of the Born–Haber cycle, write the correct symbols relating to potassium and oxygen.

b. Use the data in the table above to calculate the lattice energy of potassium oxide.

c. Describe how, and explain why, the lattice energy of sodium oxide differs from that of potassium sulfide, K₂S.

d. Explain why the 2nd electron affinity of oxygen has a positive value.

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Cambridge International AS And A Level Chemistry Coursebook

ISBN: 9781316637739

2nd Edition

Authors: Lawrie Ryan, Roger Norris

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Question Posted: Sep 22, 2021 02:37 AM

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The table shows the enthalpy changes needed to calculate the lattice energy of potassium oxide, K 2

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a A is 2Kg 2O2g B is 2Kg2O2g2e C is 2Kg Og ...View the full answer

Cambridge International AS And A Level Chemistry Coursebook

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