高二化学选择题中等难度题
化学反应N2+3H2=2NH3的能量变化如图所示,该反应的热化学方程式是( )
A.N2(g)+3H2(g)=2NH3(l);△H=2(a﹣b﹣c)kJ•mol﹣1
B.N2(g)+3H2(g)=2NH3(g);△H=2(b﹣a)kJ•mol﹣1
C.N2(g)+H2(g)=NH3(l);△H=(b+c﹣a)kJ•mol﹣1
D.N2(g)+H2(g)=NH3(g);△H=(a+b)kJ•mol﹣1
高二化学选择题简单题查看答案及解析
高二化学选择题中等难度题查看答案及解析
化学反应N2+3H2=2NH3的能量变化如图所示,该反应的热化学方程式是
A.N2(g)+3H2(g)=2NH3(1);△H=2(a-b-c)kJ·mol-1
B.N2(g)+3H2(g)=2NH3(g);△H=2(b-a)kJ·mol-1
C.1/2N2(g)+3/2H2(g)=NH3(1);△H=(b+c-a)kJ·mol-1
D.1/2N2(g)+3/2H2(g)=NH3(g);△H=(a+b)kJ·mol-1
高二化学选择题简单题查看答案及解析
化学反应N2+3H2===2NH3的能量变化如图所示,该反应的热化学方程式是( )
A. N2(g)+3H2(g)===2NH3(l) ΔH=2(a-b-c) kJ·mol-1
B. N2(g)+3H2(g)===2NH3(g) ΔH=2(b-a) kJ·mol-1
C. N2(g)+H2(g)===NH3(l) ΔH=(b+c-a) kJ·mol-1
D. N2(g)+H2(g)===NH3(g) ΔH=(a+b) kJ·mol-1
高二化学选择题中等难度题查看答案及解析
化学反应N2+3H2===2NH3的能量变化如图所示,该反应的热化学方程式是( )
A. N2(g)+3H2(g)===2NH3(l) ΔH=2(a-b-c) kJ·mol-1
B. N2(g)+3H2(g)===2NH3(g) ΔH=2(b-a) kJ·mol-1
C. N2(g)+H2(g)===NH3(l) ΔH=(b+c-a) kJ·mol-1
D. N2(g)+H2(g)===NH3(g) ΔH=(a+b) kJ·mol-1
高二化学选择题中等难度题查看答案及解析
化学反应N2+3H2=2NH3的能量变化如图所示,该反应的热化学方程式是
A.N2(g)+3H2(g)=2NH3(l) ΔH=2(a-b-c)kJ·mol-1
B.N2(g)+3H2(g)=2NH3(g) ΔH=2(b-a)kJ·mol-1
C.N2(g)+H2(g)=NH3(l) ΔH=(b+c-a)kJ·mol-1
D.N2(g)+H2(g)=NH3(g) ΔH=(a+b)kJ·mol-1
高二化学选择题中等难度题查看答案及解析
化学反应N2+3H2=2NH3的能量变化如图所示,E是正值,该反应的热化学方程式是
A.N2(g)+3H2(g)=2NH3(1); △H=2(a-b-c)kJ·mol-1
B. N2(g)+3H2(g)=2NH3(g); △H=2(b-a)kJ·mol-1
C.1/2N2(g)+3/2H2(g)=NH3(1); △H=(b+c-a)kJ·mol-1
D.1/2N2(g)+3/2H2(g)=NH3(g); △H=(a+b)kJ·mol-1
高二化学选择题简单题查看答案及解析
化学反应N2+3H2⇌2NH3的能量变化如图所示,该反应的热化学方程式是
A.N2(g)+3H2(g)⇌2NH3(l)△H=2(a﹣b﹣c)kJ/mol
B.N2(g)+3H2(g)⇌2NH3(g)△H=2(b﹣a)kJ/mol
C.0.5N2(g)+1.5H2(g)⇌NH3(l)△H=(b+c﹣a)kJ/mol
D.0.5N2(g)+1.5H2(g)⇌NH3(g)△H=(a+b)kJ/mol
高二化学选择题中等难度题查看答案及解析
化学反应N2+3H2 = 2NH3的能量变化如图所示,该反应的热化学方程式是
A.N2(g)+3H2(g) = 2NH3(l) ⊿H = 2(a—b—c)kJ·mol-1
B.N2(g)+3H2(g) = 2NH3(g) ⊿H = 2(b—a)kJ·mol-1
C.1/2N2(g)+3/2H2(g) = NH3(l) ⊿H = (b+c—a)kJ·mol-1
D.1/2N2(g)+3/2H2(g) =NH3(g) ⊿H = (a+b)kJ·mol-1
高二化学选择题中等难度题查看答案及解析
化学反应N2+3H2 = 2NH3的能量变化如图所示,该反应的热化学方程式是
A.N2(g)+3H2(g) = 2NH3(l);⊿H = 2 (a—b—c) kJ·mol-1
B. N2(g)+3H2(g) = 2NH3(g) ;⊿H = 2 (b—a) kJ·mol-1
C.N2(g)+H2(g) = NH3(l) ;⊿H =(b+c—a) kJ·mol-1
D.N2(g)+H2(g) =NH3(g) ;⊿H = (a+b) kJ·mol-1
高二化学选择题中等难度题查看答案及解析