【单选题】原电池 Pt,H 2 ( p ф )|H 2 SO 4 (0.01 m )|O 2 ( p ф ),Pt 在 298K 时, E = 1.228V ,并已知 H 2 O(l) 的生成热 Δ f H m = - 286.06 kJ·mol -1 , n = 2 ,那么该电池的温度系数是:( )
【简答题】In our library there are about ___________ books in total 2、 The art museum was rebuilt in _________ 3、 The payment is __________ 4、 The castle was first built in____________ 5、 The first meeting will...