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1、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下图的是 600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\" ">
时间:2017-08-10 01:52:57
1、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下图的是 600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/ylgkryskrpp.gif\">
[? ]
A.CO2(g)+2NH3(g) === CO(NH2)2(s)+H2O;ΔH<0
B.CO2(g)+H2(g) === CO(g)+H2O(g) ;ΔH>0
C.CH3CH2OH(g) === CH2=CH2(g)+H2O(g) ;ΔH>0
D.2C6H5CH2CH3(g)+O2(g) === 2C6H5CH=CH2(g)+2H2O(g) ;ΔH<0
2、选择题 下图表示可逆反应mA(g)+nB(g)?600)makesmallpic(this,600,1800);\' style=\"WIDTH: 36px; HEIGHT: 11px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060717/qma5ijafpg2.png\">pC(g)在不同温度(T)、压强(p)下,生成物C的物质的量分数x(C)的变化情况.下列关于该正反应热效应及方程式中A、B、C的化学计量数的判断中,正确的是
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 313px; HEIGHT: 102px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060717/vpf0p3u3e0v.png\">
[? ]
A.放热反应,m+n>p
B.吸热反应,m+n>p
C.放热反应,m+n<p
D.吸热反应,m+n=p
3、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下图的是 600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/ogfslkofn52.gif\">
[? ]
A. CO2(g)+2NH3(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/bdabqfkkkyc.gif\">CO(NH2)2(s)+H2O(g); △H<0
B. CO2(g)+H2(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/mpa50bi4jdj.gif\">CO(g)+H2O(g); △H>0
C. CH3CH2OH(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/mpa50bi4jdj.gif\">CH2=CH2(g)+H2O(g); △H>0
D. 2C6H5CH2CH3(g)+O2(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/c3ijwysiqre.gif\">2C6H5CH=CH2(g)+2H2O(g); △H<0
4、选择题 如图所示为条件一定时,反应2NO(g)+O2(g)600)makesmallpic(this,600,1800);\' style=\"WIDTH: 38px; HEIGHT: 16px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060717/rphxtm0k5rb.png\">2NO2(g)+Q(正反应为放热)中NO的转化率与温度变化关系曲线图,图中有a、b、c、d四个点,其中表示未达到平衡状态,且v正<v逆的点是
600)makesmallpic(this,600,1800);\' style=\"WIDTH: 147px; HEIGHT: 110px; VERTICAL-ALIGN: middle\" src=\"http://www_php168_com/91files/2016060717/ovptqn2lnyh.png\">
[? ]
A.a?
B.b
C.c?
D.d
5、选择题 对于可逆反应:2A(g)+B(g)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/zserbvqddf3.gif\">2C(g) △H<0,下列各图中正确的是
[? ]
A.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/4nxwalmgzcq.gif\">
B.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/gwwosdu03rb.gif\">
C.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/q0ihcnycppk.gif\">
D.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/qn4l2xrk5hz.gif\">