Which is a better thermal conductor?

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 .

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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