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The electron gain ethalpy of chlorine is...

The electron gain ethalpy of chlorine is -`349kJ mol^(-1)` . Calculate the energy released when 5.5g of chlorine is converted into `Cl^(-)` ions in the gaseous state.

Text Solution

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`Cl_((g))+ e_((g))^(-) to Cl_((g))^(-)+ 349 kJmol^(-1)`
Energy released when 1 mole (35.45g) of chlorine atoms is converted to `Cl_((g))= 349 KJ`
Therefore, energy released when 5.5g of chlorine atoms are converted to `Cl_((g))= (349)/(35.45) xx 5.5= 54.15kJ`
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