An understanding of Le Chatelier's principle is useful in the chemical industry - VCE - SSCE Chemistry - Question 1 - 2019 - Paper 1
Question 1
An understanding of Le Chatelier's principle is useful in the chemical industry.
The prediction that can be made using this principle is the effect of
A. catalysts o... show full transcript
Worked Solution & Example Answer:An understanding of Le Chatelier's principle is useful in the chemical industry - VCE - SSCE Chemistry - Question 1 - 2019 - Paper 1
Step 1
A. catalysts on the rate of reaction.
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Answer
Le Chatelier's principle does not directly address the effect of catalysts on the rate of reaction, as catalysts speed up both the forward and reverse reactions without altering the position of equilibrium.
Step 2
B. changes in temperature on the rate of reaction.
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Answer
Although changes in temperature can affect the position of equilibrium, Le Chatelier's principle specifically discusses shifts in equilibrium rather than direct effects on the rate of reaction.
Step 3
C. changes in concentration of reactants on the position of equilibrium.
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According to Le Chatelier's principle, increasing the concentration of reactants will shift the equilibrium position to the right, favoring the formation of products.
Step 4
D. changes in the concentration of reactants on the position of equilibrium.
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Answer
This is the correct answer. Le Chatelier's principle states that if a system at equilibrium is subjected to a change in concentration, pressure, or temperature, the equilibrium will shift to counteract that change.
