配套习题- 中和热的概念 -【青果学院】

1/5单选题

难度：

1.强酸和强碱的稀溶液中和热可表示为：H⁺（aq）+OH^-（aq）═H₂O（l）△H=-57.3kJ/mol以下4个热化学方程式中，
①H₂SO₄（aq）+2NaOH（aq）=Na₂SO₄（aq）+2H₂O（l）
②H₂SO₄（aq）+Ba（OH）₂（aq）=BaSO₄（s）+2H₂O（l）
③NH₃·H₂O（aq）+HCl（aq）=NH₄Cl（aq）+H₂O（l）
④NH₃·H₂O（aq）+CH₃COOH（aq）=CH₃COONH₄（aq）+H₂O（l）
其中反应热为57.3kJ/mol的是

A	①②
B	③
C	④
D	均不符合

正确答案：RA==

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

2/5单选题

难度：

2.已知：醋酸是弱酸，其电离过程的△H＞0，而强酸与强碱的稀溶液发生中和反应的热效应：H⁺(aq)+OH^-(aq)═H₂O(l)；△H=-57.3kI/mol，向1L0.5mol/L的NaOH溶液中加入下列物质：①稀醋酸；②浓硫酸；③稀硝酸，恰好完全反应时的反应热△H₁、△H₂、△H₃的关系正确的是

A	△H₁＞△H₂＞△H₃
B	△H₁＜△H₃＜△H₂
C	△H₁＜△H₂＜△H₃
D	△H₁＞△H₃＞△H₂

正确答案：RA==

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

3/5单选题

难度：

3.已知H⁺+OH^-=H₂O生成1molH₂O放出热量57.3kJ，下列反应中放出57.3kJ热量的是

A	1mol稀H₂SO₄与足量NaOH溶液反应
B	稀盐酸与氨水反应生成1 molH₂O
C	稀盐酸与稀Ba(OH)₂溶液反应生成1 mol水
D	稀NaOH与98.3%硫酸生成1 mol水

正确答案：Qw==

QeS4reeUn+aIkOeJqeawtOaYrzJtb2zvvIzkuI3mraPnoa7vvJs8YnI+QuS4reawqOawtOaYr+W8seeUteino+i0qO+8jOWtmOWcqOeUteemu+W5s+ihoe+8jOiAjOeUteemu+aYr+WQuOeDreeahO+8jOaJgOS7peaUvuWHuueahOeDremHj+imgeWwj+S6jjU3LjMga0rvvIzkuI3mraPnoa7vvJs8YnI+ROS4reehq+mFuOaYr+a1k+ehq+mFuO+8jOa6tuS6juawtOS8muaUvueDre+8jOWboOatpOaUvuWHuueahOeDremHj+Wkp+S6jjU3LjMga0rvvIzkuI3mraPnoa7jgII8YnI+5omA5Lul5q2j56Gu55qE562U5qGI5pivQ+OAgg==

4/5单选题

难度：

4.已知：H⁺(aq)+OH^－(aq)＝H₂O(l)△H=－57.3kJ·mol^－1。对于下列反应：
①HCl(aq)+NH₃·H₂O(aq)＝NH₄Cl(aq)+H₂O(l)△H=－akJ·mol^－1
②HNO₃(aq)+KOH(aq)＝KNO₃(aq)+H₂O(l)△H=－bkJ·mol^－1 则a、b的大小关系为

A	a＞b
B	b＞a
C	a=b
D	无法比较

正确答案：Qg==

5byx55S16Kej6LSo55qE55S156a75ZC45pS254Ot6YeP77yM5Zug5q2k5Lit5ZKM5omA5pS+5Ye655qE54Ot6YeP5Lya5YeP5bCR44CC55Sx5LqOYeOAgWLlnYfkuLrmlbDlgLzvvIzmlYVi77yeYQ==

5/5单选题

难度：

5.下列说法正确的是

A	中和热一定是强酸跟强碱反应放出的热量
B	1 mol酸与1 mol碱完全反应放出的热量是中和热
C	在稀溶液中,酸与碱发生中和反应生成1 mol H2O(l)时的反应热叫做中和热
D	测定中和热时可用稀硫酸和稀Ba(OH)₂溶液

正确答案：Qw==

5Lit5ZKM54Ot5piv5oyH56iA6YW444CB56iA56Kx5Y+R55Sf5Lit5ZKM5Y+N5bqU55Sf5oiQMSBtb2wgSDxzdWI+Mjwvc3ViPk8obCnml7bnmoTlj43lupTng60s5pWFQ+mhueato+ehruOAgjxicj5IPHN1Yj4yPC9zdWI+U088c3ViPjQ8L3N1Yj7lkoxCYShPSCk8c3ViPjI8L3N1Yj7lj43lupTml7Ys6Zmk55Sf5oiQ5rC05aSWLOi/mOaciUJhU088c3ViPjQ8L3N1Yj7nlJ/miJAs5omA5Lul5YW25Y+N5bqU54Ot5LiN5piv5Lit5ZKM54OtLETpobnplJnor6/jgII=