KEAM 2014 Physics and Chemistry Paper

Question : 98 of 120

Marks: +1, -0

The lattice energy of NaCl is 788 kJ mol−1. This means that 788 kJ of energy is required

to separate one mole of solid NaCl into one mole of Na(g) and one mole of Cl(g) toinfinite distance
to separate one mole of solid NaCl into one mole of Na+(g) and one mole of Cl−(g) toinfinite distance
to convert one mole of solid NaCl into one mole of gaseous NaCl
to convert one mole of gaseous NaCl into one mole of solid NaCl
to separate one mole of gaseous NaCl into one mole of Na+(g) and one mole of Cl−(g) to infinite distance

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