N2 + 3H2 ----- 2NH3
H(reaction)=2H(NH3)-H(N2)-3*H(H2)=2*(-92.5)-0-0=-185 kJ/mol
H(reaction)=H(N三N)+3*H(H-H)-2*3H(N-H)=-185 KJ/mol
N-H键能未给出.
N2 + 3H2 ----- 2NH3
H(reaction)=2H(NH3)-H(N2)-3*H(H2)=2*(-92.5)-0-0=-185 kJ/mol
H(reaction)=H(N三N)+3*H(H-H)-2*3H(N-H)=-185 KJ/mol
N-H键能未给出.