Which of the following reactions has the largest positive value of ΔS° per mole of O₂ at 25°C? A)2H₂(g)+ O₂(g)→ 2H₂O(g) B)2C(s)+ O₂(g)→ 2CO(g) C)2Mg(s)+ O₂(g)→ 2MgO(s) D)C(s)+ O₂(g)→ CO₂(g) E)2NO(g)+ O₂(g)→ 2NO₂(g)

Question

Quizplus · Accepted Answer

The reaction B involves the conversion of solid carbon and gaseous oxygen to gaseous carbon monoxide, increasing the number of gas molecules and thus increasing entropy significantly.

Which of the Following Reactions Has the Largest Positive Value