Question:
Which of the following statements is most likely true concerning the given reaction?
2A(g) + B(g) → 2C(g) + D(s)
Which of the following statements is most likely true concerning the given reaction?
2A(g) + B(g) → 2C(g) + D(s)
2A(g) + B(g) → 2C(g) + D(s)
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A decrease in the number of gas molecules usually indicates a decrease in system entropy.
Updated On: Dec 11, 2025
- Entropy of system is decreasing
- Entropy of system is increasing
- The reaction is spontaneous
- The reaction is non-spontaneous
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The Correct Option is A
Solution and Explanation
The reaction shows a decrease in the number of gaseous moles: 3 moles of gases react to give 2 moles of gas and 1 solid. Since solids have much lower entropy than gases, the overall entropy decreases.
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