Chemistry > 2007 > 26
WASSCE
Consider the reaction represented by the following equation:
N2(g) + 3H2(g) ⇔ 2NH3(g) ; ΔH = -92 kJmol-1
Finely divided iron is used as catalyst in the reaction in order to
N2(g) + 3H2(g) ⇔ 2NH3(g) ; ΔH = -92 kJmol-1
Finely divided iron is used as catalyst in the reaction in order to
A.
lower the value of ΔH
B.
increase the time for attainment of equilibrium
C.
shorten the time for attainment of equilibrium
D.
decrease the yield of ammonia
Answer: C
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