化学反应N2+3H2=2NH3的能量变化如下图所示.该反应的热化学方程式是( ) A. N2(g)+3H2(g) === 2NH3(1) △H=2kJ·mol-1 B. N2(g)+3H2(g) === 2NH3(g) △H=2(b-a)kJ·mol-1 C. N2(g)+H2(g) === NH3(1) △H=kJ·mol-1 D. N2(g)+H2(g) === NH3(g) △H=(a+b)kJ·mol-1 查看更多

 

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化学反应N2+3H2=2NH3的能量变化如下图所示,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

 

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化学反应N2+3H2=2NH3的能量变化如下图所示,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

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化学反应N2+3H2=2NH3的能量变化如下图所示,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

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化学反应N2+3H2==2NH3的能量变化如下图所示,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-1
B.N2(g)+3H2(g)=2NH3(g) △H =2(b-a)kJ·mol-1
C.1/2 N2(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

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化学反应N2+3H2=2NH3的能量变化如下图所示,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

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