试题 试卷
题型:单选题 题类:常考题 难易度:普通
黑龙江省牡丹江市第一高级中学2017-2018学年高一下学期化学期末考试试卷
①Sn (s、白)+2HCl (aq)=SnCl2 (aq)+H2 (g);DH1
②Sn (s、灰)+2HCl (aq)=SnCl2 (aq)+H2 (g);DH2
③Sn (s、灰) Sn (s、白);DH3=+2.1 kJ/mol
下列说法正确的是( )
P4(白磷、s)+5O2(g)═P4O10(s)△H═﹣2983.2kJ/mol
P(红磷、s)+ O2(g)═ P4O10(s)△H═﹣738.5kJ/mol
写出白磷转化为红磷的热化学方程式{#blank#}1{#/blank#},由此可知,红磷比白磷{#blank#}2{#/blank#}.(填“稳定”或“不稳定”)
①CH3OCH3(g)+H2O(g)═2CH3OH(g)△H=+a kJ•mol﹣1
②CH3OH(g)+H2O(g)═CO2(g)+3H2(g)△H=+b kJ•mol﹣1
③CO(g)+H2O(g)═CO2(g)+H2(g)△H=﹣c kJ•mol﹣1
④CH3OH(g)═CO(g)+2H2(g)△H=+d kJ•mol﹣1
请回答下列问题.
试题篮