• 2022-10-25
    已知恒压下反应C(s)+1/2O2(g)→CO(g)为放热反应,则该反应( )
    A: (A)△U > 0, W > 0
    B: (B)△U < 0, W < 0
    C: (C)△U > 0, W < 0
    D: (D)△U < 0, W > 0