本课配套习题挑战模式1/5
单选题
难度系数:
1.N2H4是一种高效清洁的火箭燃料.0.25molN2H4(g)完全燃烧生成氮气和气态水时,放出133.5kJ热量.则下列热化学方程中正确的是
A: N2(g)+H2O(l)△H=+257kJ·mol-1 |
B: N2H4(g)+O2(g)=N2(g)+2H2O(l)△H=-133.5kJ·mol-1 |
C: N2H4(g)+O2(g)=N2(g)+2H2O(g)△H=+534kJ·mol-1 |
D: N2H4(g)+O2(g)=N2(g)+2H2O(g)△H=-534kJ·mol-1 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zyo5Yik5pat54Ot5YyW5a2m5pa556iL5byP5piv5ZCm5q2j56Gu55qE57G75Z6L6aKY5Lit77yM6KaB5rOo5oSP5Yeg54K577ya5pa556iL5byP55qE6YWN5bmz77yb54mp6LSo55qE6IGa6ZuG54q25oCB77yb4pazSOeahOato+i0n+OAgeaVsOWAvOWSjOWNleS9jeOAgg==
- 答案:RA==
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
本课配套习题挑战模式2/5
单选题
难度系数:
2.下列热化学方程式书写正确的是
A: C(s)+O2(g)=CO2(g)ΔH=+393.5 kJ/mol |
B: 2SO+O2=2SO3ΔH=-196.6 kJ/mol |
C: H2(g)+1/2O2(g)=H2O(l)ΔH=-285.8 kJ/mol |
D: 2H2(g)+O2(g)=2H2O(l)ΔH=-571.6 kJ |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zyo5Yik5pat54Ot5YyW5a2m5pa556iL5byP5piv5ZCm5q2j56Gu55qE57G75Z6L6aKY5Lit77yM6KaB5rOo5oSP5Yeg54K577ya5pa556iL5byP55qE6YWN5bmz77yb54mp6LSo55qE6IGa6ZuG54q25oCB77yb4pazSOeahOato+i0n+OAgeaVsOWAvOWSjOWNleS9jeOAgg==
- 答案:Qw==
Q+eahOeHg+eDp+WPjeW6lOS4uuaUvueDreWPjeW6lO+8jEHplJnvvJvkuablhpnng63ljJblrabmlrnnqIvlvI/pnIDopoHluKbnirbmgIHvvIxC6ZSZ77ybzpRI55qE5Y2V5L2N5Li6a0rCt21vbDxzdXA+77yNMTwvc3VwPu+8jETplJnjgII=
本课配套习题挑战模式3/5
单选题
难度系数:
3.试直接判断下列热化学方程式书写不正确的是
A: H2(g)+Cl2(g)===HCl(g)ΔH=-91.5 kJ/mol |
B: H2(g)+Cl2(g)===HCl(g)ΔH=+91.5 kJ/mol |
C: H2(g)+Cl2(g)===2HCl(g) ΔH=-183 kJ/mol |
D: 2HCl(g)===H2(g)+Cl2(g) ΔH=+183 kJ/mol |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zyo5Yik5pat54Ot5YyW5a2m5pa556iL5byP5piv5ZCm5q2j56Gu55qE57G75Z6L6aKY5Lit77yM6KaB5rOo5oSP5Yeg54K577ya5pa556iL5byP55qE6YWN5bmz77yb54mp6LSo55qE6IGa6ZuG54q25oCB77yb4pazSOeahOato+i0n+OAgeaVsOWAvOWSjOWNleS9jeOAgg==
- 答案:Qg==
5rCi5rCU54eD54On5bqU6K+l5piv5pS+54Ot5Y+N5bqU77yM4pazSOW6lOivpeWwj+S6jjDvvIzmiYDku6XpgInpoblC5LiN5q2j56Gu77yM5YW25L2Z6YCJ6aG56YO95piv5q2j56Gu55qE77yM562U5qGI6YCJQuOAgjxicj4=
本课配套习题挑战模式4/5
单选题
难度系数:
4.在一定条件下,将64 g二氧化硫气体氧化成三氧化硫气体时,实验测得放出热量为78.64 kJ,已知二氧化硫在此条件下的转化率为80%。下列热化学方程式书写正确的是
A: SO2(g)+O2(g)SO3(g)ΔH=-98.3 kJ·mol-1 |
B: 2SO2(g)+O2(g) 2SO3(l)ΔH=-196.6 kJ·mol-1 |
C: SO2(g)+O2(g)SO3(g)ΔH=-78.64 kJ·mol-1 |
D: 2SO2(g)+O2(g) 2SO3(g)ΔH=+196.6 kJ·mol-1 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zyo5Yik5pat54Ot5YyW5a2m5pa556iL5byP5piv5ZCm5q2j56Gu55qE57G75Z6L6aKY5Lit77yM6KaB5rOo5oSP5Yeg54K577ya5pa556iL5byP55qE6YWN5bmz77yb54mp6LSo55qE6IGa6ZuG54q25oCB77yb4pazSOeahOato+i0n+OAgeaVsOWAvOWSjOWNleS9jeOAgg==
- 答案:QQ==
5qC55o2u6aKY55uu5Y+v55+l6K+l5Y+N5bqU5Li65pS+54Ot5Y+N5bqU77yMzpRI77ycMO+8jETpgInpobnplJnor6/vvJvigJxs4oCd6KGo56S65ray5oCB77yM6aKY55uu6KaB5rGC55qE5piv55Sf5oiQ5LiJ5rCn5YyW56Gr5rCU5L2T77yMQumAiemhuemUmeivr++8m+WPr+mAhuWPjeW6lOS4reeahM6USOaMh+eahOaYr+WFtuWujOWFqOWPjeW6lOaXtuaUvuWHuueahOeDremHj++8jOS4juWFtuaYr+WQpuWPr+mAhuWSjOi9rOWMlueOh+aXoOWFs++8jEPpgInpobnplJnor6/jgIJuKFNPPHN1Yj4yPC9zdWI+Ke+8nTEgbW9s77yM5Y+C5Yqg5Y+N5bqUMC44IG1vbO+8jOaUvuWHuueDremHj+S4ujc4LjYga0rvvIzoi6Xlj4LliqDlj43lupTnmoRTTzxzdWI+Mjwvc3ViPuaYrzEgbW9s77yM5YiZ5pS+5Ye655qE54Ot6YeP5Li6OTguMyBrSu+8jOaVhUHmraPnoa7jgII=
本课配套习题挑战模式5/5
单选题
难度系数:
5.2013年6月11日我国成功发射了“神州十号”。这标志着中国人的太空时代又前进了一大步。发射“神十”时用肼作为火箭发动机的燃料,NO2为氧化剂,反应生成N2和水蒸气。已知:N2(g)+2O2(g)=2NO2(g);△H=+67.7 kJ/molN2H4(g)+O2(g)=N2(g)+2H2O(g);△H=-534 kJ/mol下列关于肼和NO2反应的热化学方程式中,正确的是
A: 2N2H4(g)+2NO2(g)=3N2(g)+4H2O(l);△H=-1135.7kJ/mol |
B: 2N2H4(g)+2NO2(g)=3N2(g)+4H2O(g);△H=-1000.3kJ/mol |
C: N2H4(g)+NO2(g)=N2(g)+2H2O(l);△H=-1135.7kJ/mol |
D: 2N2H4(g)+2NO2(g)=3N2(g)+4H2O(g);△H=-1135.7kJ/mol |
一次做对,真牛!
+5奖励规则>
- 提示1:5pys6aKY55qE5YWz6ZSu5piv5YWz5rOo5rC055qE54q25oCB77yM5bm26K6h566X5Y+N5bqU54Ot44CC
- 答案:RA==
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