For thefollowingquestionsenterthe correctnumericalvalue(in decimal -notation , truncated // rounded - offto the seconddecimalplace e.g.,6.25 , 7.00 -0.33,- 30,30.27 , - 127 .30 ) usingthe mouseand theon- screen virtualnumerickeypadin theplacedesignatedto enterthe answer. The amountof energyreleasedwhen 1 xx 10^(10) atoms ofchlorinein vapour stateare convertedto C1^(-) ionsaccordingto theequation, C1 (g) + e^(-)to C1^(-)( g) " is" 57.86 xx10^(-1) J Calculate theelectron gainenthalpyof chlorineatom intermsof eV peratom.

For thefollowingquestionsenterthe correctnumericalvalue(in decimal -no

1.	For thefollowingquestionsenterthe correctnumericalvalue(in decimal -notation , truncated // rounded - offto the seconddecimalplace e.g.,6.25 , 7.00 -0.33,- 30,30.27 , - 127 .30 ) usingthe mouseand theon- screen virtualnumerickeypadin theplacedesignatedto enterthe answer. The amountof energyreleasedwhen 1 xx 10^(10) atoms ofchlorinein vapour stateare convertedto C1^(-) ionsaccordingto theequation, C1 (g) + e^(-)to C1^(-)( g) " is" 57.86 xx10^(-1) J Calculate theelectron gainenthalpyof chlorineatom intermsof eV peratom.
Answer» Solution :The AMOUNTOF energyreleasedwhen `1xx 10^(10)` atoms of chlorinein vapourstateareconvertedinto `C1^(-)`ionsaccordingto theequation. `C1 (g) E^(-) toC1^(-)( g)" is"57. 86 xx10^(-1) J` `:. ` The electrongain enthalpyof chlorinei.e.,the amountof energyreleasedwhen 1mole`(6.023 XX 10^(23))` atomsof chlorineare convertedinto `C1^(-)` ionsaccordingto theaboveequation willbe `= (57. 86 xx 10^(-10))/(1 xx 10^(10))xx 6. 023xx 10^(23)` `=- 348 .49 xx 10^(3)j// mol = - 348 .49 kJ// mol` Now1 EV `//` atom = 96 .49 kJ `mol^(-1)` `:. ` Electron gainenthalpyof chlorine`= - (348 .49)/( 96. 49) ` `=- 3.61eV // atom`