Write statement of second law of thermodynamics.

Question

For reaction $A \rightleftharpoons B$, $\Delta G^{\circ} = 105 - 35 \log T$. Find the transition temperature (in $^{\circ} C$) of the above reaction at 1 bar.

Answer 1

Step 1: Understanding the Concept:
The Second Law of Thermodynamics deals with the direction of spontaneous processes and the quality of energy.
Step 3: Detailed Explanation:
There are various ways to state this law:
1. Entropy Statement: Any spontaneous process in an isolated system leads to an increase in total entropy ($\Delta S_{total}>0$).
2. Clausius Statement: Heat cannot flow spontaneously from a colder body to a hotter body without external work.
3. Kelvin-Planck Statement: It is impossible to construct a heat engine that converts heat from a reservoir completely into work with 100% efficiency.
Step 4: Final Answer: The second law states that spontaneous processes are accompanied by an increase in the entropy of the universe.

Write statement of second law of thermodynamics.

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