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The ionisation enthalpy of sulphur is "1014kJmol"^(-1). If its electronegativity is 2.4, what is its electron gain enthalpy? |
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Answer» SOLUTION :In the SCALE, electronegativity (E.N) is given in terms of ionisation, enthalpy `(I_1)` and ELECTRON GAIN enthalpy `(E_1)` as `E.N. = (I_1 + E_1)/(544)` SUBSTITUTING the values, `2.4 - (1014 + E_1)/(544)` Electron affinity `= E_1 = (544 xx 2.4) - 1014 = 290` Electron gain enthalpy of sulphur = `- 290 kj mol^(-1)` |
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