Calculate the AHº for the imaginary reaction A + B --> C +D
Given:
AH°F (A) = 25 kJ/mol
AHºf (B) = -75 kJ/mol
AH°F (C) = -200.kJ/mol
AH°F (D) = 15k J/mol

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 .

no but i do not usually comment or use my voice that much when it comes to social media

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.