List the individual steps used in constructing a Born–Haber
cycl...

Question

List the individual steps used in constructing a Born–Haber 
cycle for the formation of BaI2 from the elements. Which of 
the steps would you expect to be exothermic?

Accepted Answer

Hi everyone here we have a question asking us to identify the steps that are expected to be exact thermic in the born haber cycle for the formation of magnesium bromide. So first we have magnesium solid forms magnesium gashes and that is a solid to gas which is expected to be positive. So it is endo thermic. Next we have magnesium gashes forms magnesium With a two plus charge gashes plus two electrons. The ionization energy is expected to be positive. So that is end of thermite. Next we have bro ming too liquid forming, browning too gashes this is a liquid to gas, this is expected to be positive. So this is end of thermite. Next we have browning two gashes to to growing gashes. This adam. Ization needs energy so it is expected to be positive. An endo thermic. Next we have bro. Ming gas plus an electron forms bro me negative. The electron affinity is expected to be negative. So this is expected to be exo thermic. And lastly we have magnesium two plus gashes Plus two Bro. ming negative gashes forms magnesium bromide solid. This lattice energy is expected to be negative. So it is exo thermic. So these are our two eggs are thermic steps and that is our final answer. Thank you for watching. Bye.

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