高二化学选择题中等难度题
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(l)△H=2(a-b-c) kJ/mol
C. 1/2N2(g)+3/2H2(g)NH3(l)△H=(b+c-a) kJ/mol
D. 1/2N2(g)+3/2H2(g)NH3(g)△H=(a+b) kJ/mol
高二化学单选题困难题查看答案及解析
化学反应N2+3H2 2NH3的能量变化下图所示,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.N2(g)+H2(g) NH3(1);△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
化学反应N2+3H2 2NH3的能量变化下图所示,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.N2(g)+ H2(g) NH3(1);△H=(b+c-a)kJ·mol-1
D.N2(g)+ H2(g) NH3(g);△H=(a+b)kJ·mol-1
高二化学选择题困难题查看答案及解析
化学反应N2+3H2 2NH3的能量变化下图所示,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.1/2 N2(g)+3/2 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
化学反应N2+3H2 2NH3的能量变化下图所示,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(l) △H = 2(a-b-c) kJ/mol
C. N2(g)+H2(g) NH3(l) △H = (b+c-a) kJ/mol
D. N2(g)+H2(g) NH3(g) △H = (a+b) kJ/mol
高二化学选择题困难题查看答案及解析
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);
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
高二化学单选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
高二化学选择题简单题查看答案及解析
化学反应N2+3H22NH3的能量变化图所示,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(l)△H=2(b-a) kJ/mol
C.N2(g)+ H2(g)NH3(l)△H=(b+c-a) kJ/mol
D.N2(g)+H2(g)NH3(g)△H=(a+b)kJ/mol
高二化学选择题困难题查看答案及解析