1. ITK-234 Termodinamika Teknik Kimia 2 Chemical Equilibria Dicky Dermawan www.dickydermawan.net78.netdickydermawan@gmail.com

2. Reaction Coordinate 

3. If, initially there are 2 mol CH 4, 1 mol H 2 O, 1 mol CO, and 4 mol H 2 :

4. Reaction Coordinate

5. Reaction Coordinate: Multiple Reactions

7. Reaction Coordinate  If, initially there are 2 mol CH 4, 1 mol H 2 O, 1 mol CO, and 4 mol H 2 :

8. Reaction Coordinate

9. Reaction Coordinate & Equilibrium Condition

10. Reaction Coordinate & Equilibrium Condition (Cont’)

11. Method of Equilibrium Constant For gases: For ideal gases:

12. Method of Equilibrium Constant

13. Problems

14. Problem Hint: Different Way Leads to The Same Results

15. Problems

16. Calculation of Equilibrium Constant

25. Heat Capacity Data - Gases

27. Heat Capacity Data - Solid

28. Heat Capacity Data - Liquid

29. Problems

30. Problems

31. Problems

32. Problems

33. Problems

34. Problems

35. Problems

36. Problems

37. Problems

38. Multiple Reactions A bed of coal (assume pure carbon) in a coal gasifier is fed with steam and air and produce a gas stream containing H 2, CO, O 2, H 2 O, CO 2, and N 2. If the feed to the gasifier consists of 1 mol of steam and 2.38 mol of air, calculate the equilibrium composition of the gas stream at P = 20 bar.

39. Multiple Reactions

40. Problems

41. Problems

42. Problems

43. Lagrange Multiplier for Complex Reaction First Step: Atomic Balances #2 Step: No. of eqn = no. of involved atom No. of eqn = no. of species involved Use Computer to Solve All The Equation Simultaneously.

44. Problem Calculate the equilibrium composition at 1000 K and 1 bar of a gas-phase system containing the species CH 4, H 2 O, CO, CO 2, and H 2. In the initial unreacted state ther are present 2 mol of CH 4 and 3 mol of H 2 O. Assume ideal gases. At 1000 K: