L30S07_Equi_Temp_Lechatelier 04-04-07

8 h 572 kj mol 1 k at equilibrium t l18 4

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: -1 = K at Equilibrium (T) L18-4 A.Pines,M.Kubinec.UCB L18-5 A.Pines,M.Kubinec.UCB Ammonia Synthesis (Haber-Bosch 1910) (HaberN2 (g) + 3 H2 (g) H ~ -92 kJ 2 NH3 (g) mol-1 Raise P Multiple Equilibria A H1 K1 B B H2 K2 C = [C] [A] A H3 K3 C Slow at 25o C. High T means low K: K3 = [C][B] ][B [A][B] ][B = K1 K2 Actual Conditions: T~ 500 oC P~ 200 atm L18-9 H3 = H1 + H2 A.Pines,M.Kubinec.UCB L18-10 A.Pines,M.Kubinec.UCB Effect of P, V, T, n 2 NO2 (g) N2O4 (g) Equilibrium At 25 C, K ~ 6.8, H = -57.2 kJ mol-1 Exothermic Q= PN2O4 P2NO2 = K at Equilibrium (T) L30-3 2001 A.Pines,M.Kubinec,UCB A.Pines,M.Kubinec,UCB 1 Chem 1A, L30: "Equilibrium, Temp, LeChatelier" ChemQuiz 30.1 The volume is doubled by opening the valve. As the system approaches equilibrium the color intensity will ...? 1) Increase 2001 A.Pines,M.Kubinec,UCB 2) Same 3) Decrease L30-4 Le Chtelier's Principle A system in equilibrium subjected to a stress will react in a direction that tends to reduce the stress Q=K Q>K Q=K V P Q 2001 A.Pines,M.Kubinec,UCB L30-6 ChemQuiz 30.2 Which str...
View Full Document

This note was uploaded on 08/19/2009 for the course CHEM 1A taught by Professor Nitsche during the Spring '08 term at Berkeley.

Ask a homework question - tutors are online