离氨,使平衡右移. 四.计算题 1.108BE02解: 2A(g) B(g)±2C(g) 始:2×10 1×10 0 平:(2×105-X)(1×105-1/2X)X 有(2×105-X)+(1×105-1/2X)+X=2.2×10 X=1.6×10(Pa) 1.6×10 0=2×10 ×100%=80% 器 1.6×10 0.4×10)0.2×10=8X10 2.316BE02解:.△G=-2.30RT1gK .△G=-2.30×8.31×(273+25)×1g5.0×107 =100813(J·mo1) =1.008×10(kJ·mo1) 3.316DE01 解: 平衡时,P(NH3)=10×3.85%=0.385P0 P)-10-0.385=2.40p8 4 P()=3P(N2)=7.2Po P 0.385 Kp P 7.2×2.4 =1.65×10 设50Po时,NL占X P=50XpaP(2)=0(1-X)=(12.5-12.5Xx)Pe P(2)=(37.5-37.5X)Po (50X) (37.5-37.5X)3(12.5-12.5X) =1.65×10 X=0.15 NL占15%. 4.316DE06 解: Kr=PH2 PCo2 40×12 PCoPH2o 40×20 =0.6离氨,使平衡右移. 四.计算题 1. 108BE02 解: 2A(g) + B(g) 2C(g) 始: 2×105 1×105 0 平: (2×105 -X) (1×105 -1/2X) X 有 (2×105 -X)+(1×105 -1/2X)+X=2.2×105 X=1.6×10 5 (Pa) = 1.6×105 2×105 ×100%=80% K= PC 2 PA 2 PB = 1.6×105 (0.4×105 ) (0.2×105 ) =8×10-4 2. 316BE02 解:∵ △G ø=-2.30RTlgKp ∴ △G ø=-2.30×8.31×(273+25)×lg5.0×1017 =100813(J·mol-1 ) =1.008×102 (kJ·mol-1 ) 3. 316DE01 解: 平衡时,P(NH3)=10×3.85%=0.385Pø P(N2)=10-0.385 4 =2.40Pø P(H2) =3P(N2) = 7.2Pø Kp = P P P = 0.385 7.2 ×2.4 = 1.65×10-4 设 50Pø 时,NH3占 X P =50XPø P(N2) = 50 4 (1-X)=(12.5-12.5X)Pø P(H2) =(37.5-37.5X)Pø (50X) (37.5-37.5X) 3 (12.5-12.5X) = 1.65×10-4 X=0.15 NH3占 15%. 4. 316DE06 解: KP = CO H O H CO 2 2 2 p p p p = 40×12 40×20 =0.6