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Multiple Choice
In the context of organic chemistry reactions, which of the following factors can provide a survival advantage to a particular reaction pathway?
A
Increased pressure
B
Lower concentration of reactants
C
Presence of a catalyst
D
Higher reaction temperature
Verified step by step guidance
1
Understand the role of a catalyst: A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It provides an alternative reaction pathway with a lower activation energy.
Consider the effect of increased pressure: In reactions involving gases, increased pressure can shift the equilibrium position according to Le Chatelier's principle, but it does not inherently provide a survival advantage to a reaction pathway.
Evaluate the impact of lower concentration of reactants: Lower concentration generally decreases the rate of reaction as there are fewer reactant molecules available to collide and react.
Analyze the effect of higher reaction temperature: Higher temperatures typically increase reaction rates by providing more energy to overcome the activation energy barrier, but they can also lead to side reactions or decomposition of reactants.
Conclude why the presence of a catalyst is advantageous: A catalyst specifically lowers the activation energy, making the reaction more favorable under given conditions without altering the equilibrium position, thus providing a survival advantage to the reaction pathway.