In the important industrial process for producing ammonia (the haber process), the overall reaction is: n2(g) + 3h2(g) → 2nh3(g) + 100.4 kj a yield of nh3 of approximately 98% can be obtained at 200°c and 1,000 atmospheres of pressure. this reaction is:

exothermic
endothermic

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be