A:C + H2O ='=' CO + H2ΔH= +131.3 kJ·mol-1( )
B:C(s)+ H2O(g) ='=' CO(g) + H2(g)ΔH= +10.94 kJ·mol-1
C:C(s)+ H2O(l) ='=' CO(g) + H2(g)ΔH= +131.3 kJ·mol-1
D:C(s)+ H2O(g) ='=' CO(g) + H2(g)ΔH= +131.3 kJ·mol-
读某海岸附近的近地面等压面示意图,回答图示情况出现于一天当中的时段是( )
三个人站成一排照相,有( )种站法.
夏季气候特征:____、____、____、____。
A: How does he go to school?
B:____ .