Chemosynthetic bacteria reduce CO₂ by ""splitting"" H₂S(g) instead of the H₂O(g) used by photosynthetic organisms. Compare the free energy change for splitting H₂S with that for splitting H₂O. Is there an advantage to using H₂S instead of H₂O?

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23-08-2022
Chemistry

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Chemosynthetic bacteria reduce CO₂ by ""splitting"" H₂S(g) instead of the H₂O(g) used by photosynthetic organisms. Compare the free energy change for splitting H₂S with that for splitting H₂O. Is there an advantage to using H₂S instead of H₂O?

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nandinipareek nandinipareek · Answer 1 · 2022-08-28T10:14:33-04:00

Chemosynthetic bacteria reduce CO₂ emissions by splitting H₂S rather than , as photosynthetic organisms do.

The reason for this is a change in free energy. Yes, the free energy change for splitting H₂O is +33 kJ/mol, while the free energy change for splitting H₂S is -33 kJ/mol. And, because the free energy is negative, the reaction for splitting H₂S is feasible. As a result, H₂S is preferred over H₂O water.

Find more on photosynthesis at : https://brainly.com/question/12377969

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