The role of a catalyst is to change ______.

A. Gibbs energy of reaction

B. Enthalpy of reaction

C. Activation energy of reaction                                                         

D. Equilibrium constant

<p>This is a Fill in the blanks Type Question as classified in NCERT Exemplar</p><p>Option C</p><p><strong>Gibbs energy of reaction </strong>- Gibbs free energy is a single-valued combination of entropy and enthalpy. The direction of a chemical reaction at constant temperature and pressure is predicted by Gibbs free energy.</p><p><strong>Enthalpy of reaction </strong>– When one mole of matter is converted by a chemical reaction under specified conditions, the enthalpy of reaction is the change that occurs in the system.</p><p><strong>Activation energy of reaction </strong>– The lowest amount of energy necessary to activate molecules to a state where they can perform physical and chemical transformations is known as the activation energy of a process. The catalyst creates a lower-activation-energy pathway.</p><p><strong>Equilibrium constant </strong>– The equilibrium constant is denoted by the letter "K." It is the equilibrium relationship between the products and reactants of a reaction in terms of a specified unit.</p>

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