PLEASE HELP A reaction cannot be spontaneous if
a. ∆H is positive and ∆S is negative.
b. ∆H is negative and ∆S is negative.
c. ∆H is positive and ∆S is positive.
d. ∆H is negative and ∆S is positive.

c

Explanation:

because h is boy and s is girl

alfred von schlieffen, german army chief of staff, was given instructions to devise a strategy that would be able to counter a joint attack. in december, 1905, he began circulating what later became known as the schlieffen plan. schlieffen argued that if war took place it was vital that france was speedily defeated.

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .