Question

Use the following data and data from the Data Booklet to construct a Born-Haber cycle and calculate the lattice energy of BaS. standard enthalpy change of formation of BaS(s) -460 kJ mol-1 standard enthalpy change of atomisation of Ba(s) +180 kJ mol-1 standard enthalpy change of atomisation of S(s) +279 kJ mol-1 electron affinity of the sulfur atom -200 kJ mol-1 electron affinity of the S- ion +640 kJ mol-1 lattice energy = ................................... kJ mol-1 (ii) Explain whether the magnitude of the lattice energy of BaS is likely to be greater or less than that of BaO.

          Use the following data and data from the Data Booklet to construct a Born-Haber cycle and calculate the lattice energy of BaS.

standard enthalpy change of formation of BaS(s) -460 kJ mol-1
standard enthalpy change of atomisation of Ba(s) +180 kJ mol-1
standard enthalpy change of atomisation of S(s) +279 kJ mol-1
electron affinity of the sulfur atom -200 kJ mol-1
electron affinity of the S- ion +640 kJ mol-1

lattice energy = ................................... kJ mol-1

(ii) Explain whether the magnitude of the lattice energy of BaS is likely to be greater or less than that of BaO.

Use the following data and data from the Data Booklet to construct a Born-Haber cycle and calculate the lattice energy of BaS.

standard enthalpy change of formation of BaS(s) -460 kJ mol-1
standard enthalpy change of atomisation of Ba(s) +180 kJ mol-1
standard enthalpy change of atomisation of S(s) +279 kJ mol-1
electron affinity of the sulfur atom -200 kJ mol-1
electron affinity of the S- ion +640 kJ mol-1

lattice energy = ................................... kJ mol-1

(ii) Explain whether the magnitude of the lattice energy of BaS is likely to be greater or less than that of BaO.

Added by Adam R.

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