The addition of a catalyst in a chemical reaction:
A. Increases the concentration of products at equilibrium.
B. Increases the fraction of reactant molecules with a given kinetic energy.
C. Provides an alternate path with a different activation energy.
D. Lowers the enthalpy change in the overall reaction.
Answer (2)
the addition of catalyst in a chemical reaction has 2 functions
if you add negative catalyst then the rate of chemical reaction decreases
if you add positive catalyst then the rate of chemical reaction increases.
The correct answer is C: A catalyst provides an alternate path with a different activation energy. It speeds up chemical reactions by lowering the activation energy needed for the reaction to occur, without affecting the overall position of equilibrium.
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