Increasing pressure on the equilibrium $N_2 + 3H_2 \rightleftharpoons 2NH_3$ shifts it:
ABackward, away from NH$_3$ to lower the pressure on system
BNo change, since K depends only on temperature value here
CForward toward NH$_3$, the side with fewer moles of gas
DForward toward NH$_3$ only if temperature is also raised
Answer & Solution
Correct answer: C. Forward toward NH$_3$, the side with fewer moles of gas
Le Chatelier: increased pressure shifts toward fewer moles of gas (2 vs 4); forward.
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