A:You are welcome
B:Forget it
C:With pleasure
D:That’s all right
2H2(g)+CO(g)⇌CH3OH(g)△H=﹣90.0kJ•mol﹣1①
2CH3OH(g)⇌CH3OCH3(g)+H2O(g)△H=﹣24.5kJ•mol﹣1②
CO(g)+H2O(g)⇌CO2(g)+H2(g)△H=﹣41.1kJ•mol﹣1③
第一次世界大战后形成的国际关系新格局是( )
根据图中a、b、c三种固体物质的溶解度曲线,回答下列问题: