Dear Experts,
I have calculated then energy released per atom in question 13 . It comes out to be 3.06eV . Answer given in the book is also d. However, I want to ask shouldn't there be electron gain enthalpy instead of electron affinity bcz electron affinity is not always equal to ega
Dear Student,
No, the book is correct in saying "to find electron affinity" because the definitions of both terms are as follows.
Electron affinity of an atom or molecule is the amount of energy released when an electron is added to a neutral atom or molecule to form a negative ion also,
while,
Electron gain enthalphy is is the amount of energy released when an isolated gaseous atom accepts an electron to become a monovalent gaseous anion.
so , you can say that Electron Affinity is just the same thing as Electron Gain Enthalpy but with only difference in the sign of energy.
electron affinity is positive generally.
electron affinity = - (electron gain enthalphy)
Hope this information will clear your doubts about topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.
Regards
No, the book is correct in saying "to find electron affinity" because the definitions of both terms are as follows.
Electron affinity of an atom or molecule is the amount of energy released when an electron is added to a neutral atom or molecule to form a negative ion also,
while,
Electron gain enthalphy is is the amount of energy released when an isolated gaseous atom accepts an electron to become a monovalent gaseous anion.
so , you can say that Electron Affinity is just the same thing as Electron Gain Enthalpy but with only difference in the sign of energy.
electron affinity is positive generally.
electron affinity = - (electron gain enthalphy)
Hope this information will clear your doubts about topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.
Regards