298K时,N2(g)+3H2(g)=2NH3(g),△rHm(1)=-92.38kJ.mol-1,则1/2N2(g)+3/2H2(g)=NH3(g)△rHm(2)=()
举一反三
- 已知下列反应N2(g) + 3H2(g) = 2NH3(g) (1)1/2N2(g) + 3/2H2(g) = NH3(g) (2) 1/3N2(g) + H2(g) = 2/3NH3(g) (3)的平衡常数分别为 Kθ1 、Kθ2 、Kθ3 ,则它们的关系是 A: Kθ1=Kθ2=Kθ3 B: Kθ1 = (Kθ2)2 = (Kθ3)3 C: Kθ1 =3/2Kθ2 =2/3Kθ3 D: Kθ1 = (Kθ2)1/2 = (Kθ3)1/3
- 设某温度时合成氨的反应N2(g)+3H2(g)=2NH3(g)的标准平衡常数为K⊖,则反应NH3(g)= 1/2N2(g)+3/2H2(g)是( )。 A: (K⊖)2 B: (K⊖)1/2 C: (K⊖)-1/2 D: (K⊖)-2
- N2(g) + 3H2(g) = 2NH3(g)中N2、H2、NH3的化学计量数分别为( ) A: 1, 3, 2 B: -1, -3, 2 C: 1, 3, -2 D: -1, -3, -2
- 某温度时,反应N2(g)+3H2(g)=2NH3(g)的K☉=a,则反应1/2N2(g)+3/2H2(g)=NH3(g)的K=()。 A: a B: a2 C: 1/a D: a1/2
- 反应N2(g) + 3H2(g) = 2NH3(g)的ΔG = a,则NH3(g) = 1/2N2(g) + 3/2H2(g)的ΔG为: ( ) A: a2 B: 1/a C: 1/ a2 D: –a/2