N2 (g) + 3H2 (g) → 2NH3 (g)t0时 nB/mol 3.0 t1时 nB/mol 2.0 t2时 nB/mol 1.5 10.0 7.0 5.5 0 2.0 3.0
ξ0 ξ1ξ2
n1 (H 2 ) (7.0 10.0)mol = = 1.0mol ξ1 = ν (H 2 ) 3 n1 (NH 3 ) (2.0 0)mol = = 1.0mol ξ1 = ν (NH 3 ) 2 ξ 2 = 1.5mol
n1 (N 2 ) ( 2 .0 3 .0 ) mol ξ1 = = = 1 .0 mol ν (N 2 ) 1