1.3 3 (i) In the Haber process for the production of ammonia, the following reaction occurs: 3H₂(g) 2NH3(g) If the equilibrium concentrations for all the reactants and products at 600°C are: [N₂] = 0.40 mol/dm³, [H₂] = 1.20 mol/dm³ and [NH₂] = 0.20 mol/dm³ Construct an expression for K and calculate the numerical value of the equilibrium constant, K C N₂ (8) 2 + DH is negative С (ii) At 500°C K = 0.062 mol-2dm. Compare this value to the one you calculated in 3(i) above and state whether the yield of ammonia is greater at 500°C or 600°C and briefly explain your choice.

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1.3
3 (i) In the Haber process for the production of ammonia, the following
reaction occurs:
2 (g)
+
3H₂(g)
2NH3(g)
=
DH is negative
If the equilibrium concentrations for all the reactants and products at
600°C are:
[N₂] = 0.40 mol/dm³, [H₂] = 1.20 mol/dm³ and [NH₂] = 0.20 mol/dm³
Construct an expression for K and calculate the numerical value of the
equilibrium constant, K
с
(ii) At 500°C K.
0.062 mol 2dm. Compare this value to the one you
calculated in 3(i) above and state whether the yield of ammonia is
greater at 500°C or 600°C and briefly explain your choice.
Transcribed Image Text:1.3 3 (i) In the Haber process for the production of ammonia, the following reaction occurs: 2 (g) + 3H₂(g) 2NH3(g) = DH is negative If the equilibrium concentrations for all the reactants and products at 600°C are: [N₂] = 0.40 mol/dm³, [H₂] = 1.20 mol/dm³ and [NH₂] = 0.20 mol/dm³ Construct an expression for K and calculate the numerical value of the equilibrium constant, K с (ii) At 500°C K. 0.062 mol 2dm. Compare this value to the one you calculated in 3(i) above and state whether the yield of ammonia is greater at 500°C or 600°C and briefly explain your choice.
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