Question

The addition of a catalyst during a chemical reaction alters which of the following quantities ?

(1) Entropy
(2) Internal energy
(3) Enthalpy
(4) Activation energy​

Answer 1

Answer:

4) Activation energy

Explanation:

The addition of a catalyst during a chemical reaction alters activation energy. The catalyst provides an alternate pathway of lower activation energy.

And so therefore option 4 is the correct answer.

Hope it helps you!!

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Answer 2

Answer:

Hi,

Question provided

The addition of a catalyst during a chemical reaction alters which of the following quantities ?

(1) Entropy

(2) Internal energy

(3) Enthalpy

(4) Activation energy

We know that the addition of a catalyst during a chemical reaction alters activation energy. The catalyst provides an alternate pathway of lower activation energy.

But now what is Activation energy?

In chemistry and physics, activation energy is the minimum amount of energy that must be provided for compounds to result in a chemical reaction.The activation energy (Ea) of a reaction is measured in joules per mole (J/mol), kilojoules per mole (kJ/mol) or kilocalories per mole (kcal/mol).Activation energy can be thought of as the magnitude of the potential barrier (sometimes called the energy barrier) separating minima of the potential energy surface pertaining to the initial and final thermodynamic state. For a chemical reaction to proceed at a reasonable rate, the temperature of the system should be high enough such that there exists an appreciable number of molecules with translational energy equal to or greater than the activation energy.

So now we know that the addition of a catalyst during a chemical reaction alters activation energy. The catalyst provides an alternate pathway of lower activation energy..

So therefore option 4 is correct!!

Hope it helps you!!

#bebrainlycat