Nitrogen dioxide is a component in smog. Nitrogen dioxide is yellow/brown. Its dimer, dinitrogen tetroxide is colorless. 2 NO₂ (g) N₂O4 (9) Brown → colorless 1. Does placing the tube into a hot water bath cause the brown color to increase or decrease? 2. Does adding heat shift the reaction to the right or to the left? 3. Does placing the tube into an ice water bath cause the brown color to increase or decrease?

The following amounts of HI, H2, and I2 are introduced into a 10.00 L flask and are heated to 745 K.    mol of HI mol of H2 mol of I2 Case A 1.0 0.10 0.10 Case B 15.0 1.0 1.0 Case C 10.0 10.0 1.0 Case D 5.5 0.38 1.75  The equilibrium constant for the reaction 2HI (g) ↔ H2 (g) + I2 (g) is 0.0200 at 745 K.  In which cases will the concentration of HI increase as equilibrium is attained and in which cases will the concentration of HI decrease?

Question 24 Which statement is true for a reaction with Kc equal to 8.90 x 10 122 O The reaction proceeds nearly all the way to completion. O The reaction proceeds hardly at all towards completion. O There are appreciable concentrations of both reactants and products. Increasing the temperature will not change the value of K.

1. If a reaction mixture initially contains a CO concentration of 0.1510 M and a Cl2 concentration of 0.179 M at 1000 K. What is the equilibrium concentration of CO at 1000 K? 2. What is the equilibrium concentration of Cl2 at 1000 K? 3. What is the equilibrium concentration of COCl2 at 1000 K? Thank you so much! These three questions bothered me for so long.