Third law of thermodynamics is helpful in___________________?
Correct answer: B. Both B. and C.
- A. Prediction of the extent of a chemical reaction
- B. Both B. and C.
- C. Evaluating entropy changes of chemical reaction
- D. Calculating absolute entropies of substances at different temperature
Explanation
The third law assigns zero entropy to a perfect crystal at absolute zero, allowing absolute entropies to be calculated at other temperatures. These absolute values are then used to evaluate entropy changes in chemical reactions.
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