conside following data for iodine: atomic mass126.90 electronegativity electron

Question

conside following data for iodine: atomic mass126.90 electronegativity electron affinity295.2 mol 2.66 k.J mol kJ mol kJ mol ionization energy1008.4 heat of fusion7.76 You may find additional useful data in the ALEKS Data tab release absorb can't be decided with the data given Does the following reaction absorb or release energy? O yes Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (1): kJ/mol release absorb can't be decided with the data given Does the following reaction absorb or release energy? O yes Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): kJ/mol

Explanation / Answer

in reaction 1) electron is removed from the iodine atom => elergy is required i.e. ionization energy

in reaction 1) energy is released

yes it is possible to calculate

energy absorbed = 1008.4 KJ/mol

In reaction 2) electron is added to the iodine atom since iodine is an halogen => energy is released in the process

yes we can calculate the energy from the data

energy released is 295.2 KJ/mol;

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