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A catalyst _______
- a)increases the free energy change of the reaction
- b)decreases the free energy change of the reaction
- c)neither increase nor decrease the free energy of the reaction
- d)may increase or decrease the depending upon the nature of the catalyst
Correct answer is option 'C'. Can you explain this answer?
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A catalyst _______a)increases the free energy change of the reactionb...
DG = GProducts – GReactants Hence , it does not change in the presence of a catalyst
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A catalyst _______a)increases the free energy change of the reactionb...
Explanation:
Catalyst
- A catalyst is a substance that speeds up a chemical reaction without being consumed in the process.
- It works by providing an alternative reaction pathway with a lower activation energy.
Effect on Free Energy Change
- A catalyst does not affect the overall free energy change of a reaction.
- It does not change the difference in energy between the reactants and products.
- Therefore, the free energy change remains the same with or without a catalyst.
Role of Catalyst
- The presence of a catalyst can lower the activation energy required for the reaction to occur.
- This allows the reaction to proceed faster by providing an alternate mechanism with a lower energy barrier.
- As a result, the reaction reaches equilibrium faster, but the equilibrium position and free energy change remain unchanged.
Conclusion
- In summary, a catalyst neither increases nor decreases the free energy change of a reaction.
- It only affects the rate of the reaction by lowering the activation energy required for the reaction to proceed.
- Therefore, the nature of the catalyst does not impact the overall free energy change of the reaction.
Catalyst
- A catalyst is a substance that speeds up a chemical reaction without being consumed in the process.
- It works by providing an alternative reaction pathway with a lower activation energy.
Effect on Free Energy Change
- A catalyst does not affect the overall free energy change of a reaction.
- It does not change the difference in energy between the reactants and products.
- Therefore, the free energy change remains the same with or without a catalyst.
Role of Catalyst
- The presence of a catalyst can lower the activation energy required for the reaction to occur.
- This allows the reaction to proceed faster by providing an alternate mechanism with a lower energy barrier.
- As a result, the reaction reaches equilibrium faster, but the equilibrium position and free energy change remain unchanged.
Conclusion
- In summary, a catalyst neither increases nor decreases the free energy change of a reaction.
- It only affects the rate of the reaction by lowering the activation energy required for the reaction to proceed.
- Therefore, the nature of the catalyst does not impact the overall free energy change of the reaction.
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A catalyst _______a)increases the free energy change of the reactionb)decreases the free energy change of the reactionc)neither increase nor decrease the free energy of the reactiond)may increase or decrease the depending upon the nature of the catalystCorrect answer is option 'C'. Can you explain this answer?
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