Which of the following has maximum thermodynamic spontaneously at `400^(@)C`?

Which of the following has maximum thermodynamic spontaneously at `400^(@)C`?
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Which of the following has maximum thermodynamic spontaneously at `400^(@)C`? A. `C+O_(2) to CO_(2)` B. ` ... `2CO+O_(2) to 2CO_(2)` D. all have same
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