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1、选择题 已知:4NH3(g)+5O2(g)═4NO(g)+6H2O(g),△H=-1025kJ/mol,该反应是一个可逆反应,若反应物起始的物质的量相同,下列关于该反应的示意图不正确的 ">
时间:2017-08-01 00:16:21
1、选择题 已知:4NH3(g)+5O2(g)═4NO(g)+6H2O(g),△H=-1025kJ/mol,该反应是一个可逆反应,若反应物起始的物质的量相同,下列关于该反应的示意图不正确的是( ? )
A.600)makesmallpic(this,600,1800);\' alt=\"\" src=\"http://www_php168_com/91files/2016060717/ulrh1v5uayt.png\">
B.600)makesmallpic(this,600,1800);\' alt=\"\" src=\"http://www_php168_com/91files/2016060717/euc1sgnxsfa.png\">
C.600)makesmallpic(this,600,1800);\' alt=\"\" src=\"http://www_php168_com/91files/2016060717/sijbzyfo4dk.png\">
D.600)makesmallpic(this,600,1800);\' alt=\"\" src=\"http://www_php168_com/91files/2016060717/etzzuujbxi4.png\">
2、填空题 写出下列可逆反应的平衡常数(K)的表达式。
(1)SO2(g)+O2(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/tioaz5nvzc4.gif\">SO3(g)______________;
(2)SiCl4(l)+2H2O(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/dr5lvrmcpos.gif\">SiO2(s)+4HCl( g)_______________;
(3)2N2O5(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/c1xs3w2zjrg.gif\">4NO2(g)+O2(g)______________?;
(4)3Fe(s) +4H2O(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/b4qyemoibsn.gif\">Fe3O4(s)+4H2(g)______________ 。
3、简答题 对于反应mA(g)+nB(g)=pC(g)+qD(g),根据对应图象填空:600)makesmallpic(this,600,1800);\' alt=\"\" src=\"http://www_php168_com/91files/2016060717/3p03ggilumm.png\">
(1)正反应为______反应
(2)m+n______p+q
(3)若图象如图:600)makesmallpic(this,600,1800);\' alt=\"\" src=\"http://www_php168_com/91files/2016060717/maj0srsafji.png\">
正反应为______反应:m+n______p+q.
4、选择题 已知450℃时,反应H2(g)+I2(g)600)makesmallpic(this,600,1800);\' style=\"WIDTH: 35px; HEIGHT: 15px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060717/hgtgvqk2xqy.png\">2HI(g)的K=50,由此推测在450℃时,反应2HI(g)
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 35px; HEIGHT: 15px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060717/lzgse3fgeun.png\">H2(g)+I2(g)的化学平衡常数为
[? ]
A.50?
B.0.02?
C.100?
D.无法确定
5、选择题 一定条件下,下列反应中水蒸气含量随反应时间的变化趋势符合题图的是( )600)makesmallpic(this,600,1800);\' alt=\"91考试网\" src=\"http://www_php168_com/91files/2016060717/ytsvc2wnx33.png\">
A.CO2(g)+2NH3(g)?CO(NH2)2(s)+H2O(g);△H<0
B.CO2(g)+H2(g)?CO(g)+H2O(g);△H>0
C.CH3CH2OH?(g)?CH2=CH2(g)+H2O(g);△H>0
D.2C6H5CH2CH3(g)+O2(g)?2?C6H5CH=CH2(g)+2H2O(g);△H<0