Standard enthalpy of combustion of graphite at 25 oC is –393.51 kJ mol -1 and that of diamond
is –395.41 kJ mol-1
. The enthalpy change for graphite is:
A) – 1.91 C) –2.1
B) +2.1 D) +1.91

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 .

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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