In the Haber process for the production of ammonia, $$\mathrm{N}_{2}(g)+3 \mathrm{H}_{2}(g) \longrightarrow 2 \mathrm{NH}_{3}(g)$$ what is the relationship between the rate of production of ammonia and the rate of consumption of hydrogen?

Short Answer

Expert verified
The relationship between the rate of production of ammonia and the rate of consumption of hydrogen in the Haber process is \(\frac{\Delta[H_2]}{\Delta t}=-3\frac{\Delta[NH_3]}{2\Delta t}\).

Step by step solution

01

Write down the balanced chemical equation.

Write down the balanced chemical equation for the Haber process: \(N_2(g) + 3H_2(g) \longrightarrow 2NH_3(g)\)
02

Analyze the stoichiometry of the reaction.

In the balanced chemical equation, the stoichiometric coefficients tell us the ratio in which the reactants are consumed and the products are formed. From the equation, we can see that 1 mole of nitrogen (N₂) reacts with 3 moles of hydrogen (H₂) to produce 2 moles of ammonia (NH₃).
03

Express the rate of production and consumption in terms of moles.

To express the relationship between the rates of production and consumption in terms of moles, we will call the rate of consumption of hydrogen (-Δ[H₂]/Δt) and the rate of production of ammonia (Δ[NH₃]/Δt). The stoichiometry of the equation tells us that for each mole of N₂ reacting, 3 moles of H₂ are consumed, and 2 moles of NH₃ are formed.
04

Find the relationship between the rates of production and consumption.

Using the stoichiometry of the reaction, we can now find the relationship between the rates of production and consumption of H₂ and NH₃. Since 3 moles of H₂ are consumed for every 2 moles of NH₃ produced, we can write the relationship as: \(-\frac{\Delta[H_2]}{3}=\frac{\Delta[NH_3]}{2}\) Next, we solve for the rate of consumption of hydrogen: \(\frac{\Delta[H_2]}{\Delta t}=-3\frac{\Delta[NH_3]}{2\Delta t}\) Therefore, the relationship between the rate of production of ammonia and the rate of consumption of hydrogen in the Haber process is: \(\frac{\Delta[H_2]}{\Delta t}=-3\frac{\Delta[NH_3]}{2\Delta t}\)

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