Question

Which thermodynamics law predicts correctly the degree of completion of a chemical reaction?

• A. Zeroth law
• B. First law
• C. Second law
• D. Third law

Hint:

The second law of thermodynamics determines the spontaneity and equilibrium position of a chemical reaction.

Answer 1

The Correct Option is C

Step 1: Understand the law of thermodynamics that predicts reaction completion.
The second law of thermodynamics deals with the direction of natural processes and the degree of disorder (entropy) in a system. It predicts the spontaneity and completion of chemical reactions. Step 2: Conclusion.
The degree of completion of a chemical reaction is predicted by the second law of thermodynamics, which governs the entropy change during the reaction. Final Answer: \[ \boxed{\text{Second law}} \]