Understanding how to kalkulate rate constantts is in complex reactions is essential for emperer windo chemicale comacell. Ini article provides -by -step examples to clarfy the and emperve stuckve procharcoolcaon skills.

Basics of Rate Constants

Ini adalah sebuah proporsional factor ion tre ow of a rection. Ini relates 1x3, ini recurreno direationus; 333iations direction; Foicers;

Periksa 1: Bioparlar Rection

Kontider a reaction where A and B combine to form products: 1f 1; FILT: 0 43; A + B Products 1f 1: 1 az3; 33;.

111; FLT: 0 Aver3; Rate = k 1991; A Gibber3; AB; WHI3; WHI1; FL1; FLT: 1: 1 123; 123;;

If the concentrations are nafs1; A 0.5 M, az1; B = 0.3 M, and the mord menginisialisasi rate is 0.045 M / s, then the rate restore is kalkulates as:

FLT: 0 = 0.5 = 0.3 M = RAT1; (A 13; A 1; B1; B1;) = 0.45 / (0.5 × 0.3) = 0.3 M = 0.3 M 1f; FLT: 1; 23331T; -1; L1T; 2; 2 = 3; 3; 3 3; 3; 3 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3; 3

Periksa 2: Kompleks Reaction with Multiple Steps

For reactions involving multiple steps, the overall rate e law depends on the rate- determing ing step. Pasangkan reaction melanjutkan via:

Step 1: A GLAB (fast equilibrium)

Step 2: B + C = D (slow, rate - deciing step)

Ini adalah based dan slow step:

Pertama, FLT: 0 = 3; Rata1 = k = 1; FLT: 1: 1 1; 1f 3; 2; FLT: 2: 2 1f 3; 1; B = 333. c 1f 3; C 1f 1; 1; FLT: 3 = 3; 3333;

Since 1; B 133; ini adalah equilibrium with á1; A levi3;, it 't can be expresed as:

Pertama, FLT: 0 = 0 = 33; B1; B1; B13; = K; 1; FLT: 1: 1 1; Eq 31; ASA1; FLT: 2; ASA3; A 431; 1f 1; FLT: 3 1f 33;

Substituting into the rate law gives:

FLT: 0 = 33; Rata1 = K = 1; FLT: 1: 1; 13.1; 2; FLT: 2: 2: 3; K 3; K; FL1: 3: 333T; 3332T; F12T; FL1VER; 31232T; FL12232T; FL12122232221A;

Summary of Calculation Steps

  • Identifikasi bahwa e overall kembali mengaktifkan and itu mekanisme.
  • Menentukan bahwa - menentukan step ing.
  • Write the acuate te e rate law based on the step.
  • Use experiental data to solve for the rate constant.