Ncert Exercises & Solutions

Thermodynamics is not concerned about which of the following?

1.	Energy changes involved in a chemical reaction.
2.	The extent to which a chemical reaction proceeds.
3.	The rate at which a reaction proceeds.
4.	The feasibility of a chemical reaction.

Hint: Chemical kinetics tells about the rate of reaction.

Explanation:

Thermodynamics is a branch of physics that deals with heat and its relation to other forms of energy and work. It is concerned with the initial and final states of a system and the energy changes involved in transformations, as well as the feasibility and extent of a reaction.

However, it does not concern itself with the rate at which a reaction proceeds or the mechanism by which it occurs. The study of reaction rates falls under chemical kinetics, as stated in the hint provided in the image.

Hence, option 3 is the correct answer.

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