The pyrolysis of butane occurs by a highly complex mechanism. However, a simplified mechanism describing one avenue of the decomposition is given below: C4H102 C₂H5 K₁ C4H10+ C2H5 C2H6+ C4H9* C4H9C2H4 + C2H5* 2 C₂H5 C₂H4 + C₂H6 K2 K3 K4 Using this mechanism: (i) Write the overall balanced equation for this reaction, identify the intermediates (ii) Comment, with an explanation, on whether this is a chain reaction. (iii) Use the steady state approximation to obtain a rate law for the consumption of butane.
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
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