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Per NCERT §6.8.5 + Table 6.5, for N₂ + 3H₂ ⇌ 2NH₃ (ΔH < 0), the Haber process operates at moderately high temperature (~500 °C) primarily for which reason?
ALower pressure
BAvoiding catalyst poisoning
CIncreased reaction rate
DHigher K
Answer & Solution
Correct answer: C. Increased reaction rate
NCERT §6.8.5: low T gives high K but very slow rate. ~500 °C with Fe catalyst is the compromise between yield (K) and speed.
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