Which reaction characteristics is/are changing by the addition of a catalyst to a reaction at constant temperature?

activation energy

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equilibrium constant

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reaction entropy

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reaction enthalpy

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Solution

The correct option is A activation energy
When a catalyst is added to the reaction at a constant temperature, the equilibrium constant, reaction entropy and reaction enthalpy are unaffected whereas activation energy is lowered as the catalyst provides alternate reaction pathway.

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Q. The addition of a catalyst to a reaction changes which of the following?

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(E_{a f})

80 k J m o l^{- 1}

. Enthalpy change,

Δ H = - 40 k J m o l^{- 1}

for the reaction. A catalyst lowers

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Which reaction characteristics is/are changing by the addition of a catalyst to a reaction at constant temperature?

The correct option is A activation energyWhen a catalyst is added to the reaction at a constant temperature, the equilibrium constant, reaction entropy and reaction enthalpy are unaffected whereas activation energy is lowered as the catalyst provides alternate reaction pathway.

The correct option is A activation energy
When a catalyst is added to the reaction at a constant temperature, the equilibrium constant, reaction entropy and reaction enthalpy are unaffected whereas activation energy is lowered as the catalyst provides alternate reaction pathway.