25℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ/mol、285.8 kJ/mol、890.3 kJ/mol、2800 kJ/mol,则下列热化学方程式正确的是 |
A.C(s)+O2(g)=CO(g) △H= -393.5 kJ/mol B.2H2(g)+O2(g)=2H2O(l) △H= +571.6 kJ/mol C.CH4(g)+2O2(g)=CO2(g)+2H2O(g) △H= -890.3 kJ/mol D.C6H12O6(s) +6O2(g)=6CO2(g)+6H2O(l) △H= -2800 kJ/mol |
科目:高中化学 来源: 题型:
A.C(s)+O2(g)CO(g)ΔH=-393.5 kJ·mol-1
B.2H2(g)+O2(g)2H2O(g)ΔH=+571.6 kJ·mol-1
C.CH4(g)+2O2(g)CO2(g)+2H2O(g)ΔH=-890.3 kJ·mol-1
D.C6H12O6(s)+3O2(g)3CO2(g)+3H2O(l) ΔH=-1 400 kJ·mol-1
科目:高中化学 来源: 题型:
A.C(s)+O2(g)==CO(g);△H=-393.5 kJ/mol
B.2H2(g)+O2(g)==2H2O(g);△H=+571.6 kJ/mol
C.CH4(g)+2O2(g)==CO2(g)+2H2O(g);△H=-890.3 kJ/mol
D.C6H12O6(s)+3O2(g) === 3CO2(g)+3H2O(1);△H=-1400 kJ/mol
科目:高中化学 来源: 题型:
A.C(s)+1/2O2(g)====CO(g);ΔH=-393.5 kJ·mol-1
B.2H2(g)+O2(g) ====2H2O(g);ΔH=+571.6 kJ·mol-1
C.CH4(g)+2O2(g) ====CO2(g)+2H2O(g);ΔH=-890.3 kJ·mol-1
D.1/2C6H12O6(s)+3O2(g) ====3CO2(g)+3H2O(1);ΔH=-1 400 kJ·mol-1
科目:高中化学 来源: 题型:
25℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ/mol、285.8 kJ/mol、890.3 kJ/mol、2 800 kJ/mol,则下列热化学方程式正确的是( )
A.C(s)+ O2(g)=CO(g);△H=-393.5 kJ/mol
B.2H2(g)+O2(g)=2H2O(g);△H=+571.6 kJ/mol
C.CH4(g)+2O2(g)=CO2(g)+2H2O(g);△H=-890.3 kJ/mol
D.C6H12O6(s)+3O2(g)=3CO2(g)+3H2O(l);△H=-1 400 kJ/mol
科目:高中化学 来源: 题型:
25℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ/mol、285.8 kJ/mol、890.3 kJ/mol、2800 kJ/mol 。下列热化学方程式中,正确的是.
A.c(s)+1/2O2(g)=CO(g);△H=-393.5 kJ/mol
B.2H2(g)+O2(g)=2H2O(l);△H=+571.6 kJ/mol
C.CH4(g)+2O2(g)=CO2(g)+2H2O(g);△H=-890.3 kJ/mol
D.1/2C6H12O6(s)+3O2(g)=3CO2(g)+3H2O(l);△H=-1400 kJ/mol
科目:高中化学 来源: 题型:
25℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ•mol-1、285.8 kJ•mol-1、890.3 kJ•mol-1、2 800 kJ•mol-1,则下列热化学方程式正确的是( )
A. C(s)+1/2 O2(g)===CO(g) △H=-393.5 kJ•mol-1
B. 2H2(g)+O2(g) ===2H2O(g)△H=+571.6 kJ•mol-1
C. CH4(g)+2O2(g) === CO2(g)+2H2O(g)△H=-890.3 kJ•mol-1
D. 1/2C6H12O6(s)+3O2(g) ===3CO2(g)+3H2O(l) △H=-1 400 kJ•mol-1
科目:高中化学 来源: 题型:
25℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ/mol、285.8kJ/mol、
890.3 kJ/mol、2800 kJ/mol,则下列热化学方程式正确的是( )
A.C(s)+O2(g)=CO(g);△H=-393.5 kJ/mol B.2H2(g)+O2(g)=2H2O(g);△H=+571.6 kJ/mol
C.CH4g)+2O2(g)=CO2(g)+2H2O(g);△H=-890.3 kJ/mol
D.C6H12O6(s)+3O2(g)=3CO2(g)+3H2O(l);△H=-1 400 kJ/mol
科目:高中化学 来源: 题型:
25℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是△H=- 393.5 kJ/mol、 △H= -285.8 kJ/mol、△H=- 890.3 kJ/mol、△H= - 2 800 kJ/mol,则下列热化学方程式正确的是
A.C(s)+O2(g)=CO(g) △H= - 393.5 kJ/mol
B.2H2(g)+O2(g)=2H2O(l) △H= - 571.6 kJ/mol
C.CH4(g)+2O2(g)=CO2(g)+2H2O(g) △H= - 890.3 kJ/mol
D.C6H12O6(s)+3O2(g)=3CO2(g)+3H2O(g) △H= - 1400 kJ/mol
科目:高中化学 来源:2011-2012学年江西上饶中学高一零点、实验班下期末化学试卷(带解析) 题型:单选题
25℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ/mol、285.8 kJ/mol、890.3 kJ/mol、2800 kJ/mol,则下列热化学方程式正确的是
A.C(s)+1/2O2(g)=CO(g) △H =" -" 393.5 kJ/mol |
B.2H2(g)+O2(g)=2H2O(l) △H =" +" 571.6 kJ/mol |
C.CH4(g)+2O2(g)=CO2(g)+2H2O(g) △H =" -" 890.3 kJ/mol |
D.C6H12O6(s) +6O2(g)=6CO2(g)+6H2O(l) △H =" -" 2800 kJ/mol |
科目:高中化学 来源:2013-2014学年高考化学三轮复习排查 专题5化学反应与能量练习卷(解析版) 题型:选择题
25 ℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ·mol-1、285.8 kJ·mol-1、890.3 kJ·mol-1、2 800 kJ·mol-1,则下列热化学方程式正确的是????? ( )。
A.C(s)+O2(g)=CO(g)??? ΔH=-393.5 kJ·mol-1
B.2H2(g)+O2(g)=2H2O(g)???? ΔH=+571.6 kJ·mol-1
C.CH4(g)+2O2(g)=CO2(g)+2H2O(g)??? ΔH=-890.3 kJ·mol-1
D.C6H12O6(s)+3O2(g)=3CO2(g)+3H2O(l)??? ΔH=-1 400 kJ·mol-1
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