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Surface Chemistry
Catalysis – Homogeneous and Heterogeneous
1 question from 1 paper, each with its answer.
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Concepts tested
- heterogeneous catalysis example
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2023 1 question
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Which one is an example of heterogenous catalysis?
Solid iron catalysing gaseous $N_2+H_2$ is heterogeneous (different phases).
When the reactants and the catalyst are in different phases, the catalysis is known as heterogenous catalysis. 1. $N_2(g)+3H_2(g)\xrightarrow{Fe(s)}2NH_3(g)$ (Heterogenous catalysis) 2. $2SO_2(g)+O_2(g)\xrightarrow{NO(g)}2SO_3(g)$ (Homogenous catalysis) 3. $C_{12}H_{22}O_{11}(aq)+H_2O(l)\xrightarrow{H^+(aq)}C_6H_{12}O_6(aq)+C_6H_{12}O_6(aq)$ (Homogenous catalysis) 4. $O_3(g)+NO(g)\rightarrow NO_2(g)+O_2(g)$ (Homogenous catalysis)