The enthalpy change in the reaction: N2O (g) + NO2 (g) ⇄3 NO (g)is +115.7 kJ / mol. Will the direction of the equilibrium shift LEFT, RIGHT, or STAY THE SAME when the following stresses are applied to the system?(12a): Removing nitrogen dioxide gas(12b): Adding dinitrogen monoxide gas(12c): Adding nitrogen monoxide gas(12d): Decreasing the volume of the system(12e): Increasing the temperature

H2(g) + I2(g) 2 HI(g) AH=120 kJ e) In which direction will the equilibrium shift (for the first reaction) when (i) HI(g) is removed, (ii) the temperature is decreased, (ii) the volume of the reaction system is increased, (ii) H2(g) is added?

Use arrows (up / down) to indicate the affect of each of these disturbances (stresses) on the concentration of the reactants and products in this equilibrium: 9 KJ + 2 S02 9) + 02 (9) = 2 S03 (9A disturbance affect on affect on affect on ISO2] [02] ISO3] decrease [SO2] increase [02] increase [SO3] increase pressure decrease temp Period 4 CHE

9) Given the following equilibrium reaction below, indicate which direction the reaction will shift when the indicated stresses are applied (à, ß, or none), AND indicate how the K value will change (increase, decrease or stays same) with the stress. P = 1 atm, unless otherwise specified. ​​CO(g) + Cl2(g) ó COCl2(g) ​ H = –107.6 kJ/mol What will happen if:​​​​​Shift​​​K value i) The pressure is quadrupled​​​​_______​_________________​ ii) The reaction temperature is decreased​​_______​__________________ iii) More COCl2 gas is added​​​​_______​__________________ iv) The volume is doubled​​​​_______​__________________

At 990◦C, Kc = 2.20 for the reaction:H2(g) + CO2(g) ⇀↽ H2O(g) + CO(g)How many moles of H2O(g) are presentin an equilibrium mixture resulting from theaddition of 1.19 mole of H2, 1.76 moles ofCO2, 0.974 moles of H2O, and 1.15 mole ofCO to a 5.00 liter container at 990◦C?1. 1.49 mol2. 1.40 mol3. 1.52 mol4. 1.43 mol5. 1.37 mol

Consider the following system at equilibrium where AH = 268 kJ and Kc = 5.10 × 10-6, at 548 K. NH4Cl(s) NH3(g) + HCl(9) The production of NH3(g) is favored by (indicate true or false): decreasing the temperature: decreasing the pressure (by changing the volume): increasing the volume: adding NH4Cl: adding HCl:

Equilibrium: 7. Write the equilibrium expression, K, for the following reactions: 2NH, (g) + CO2 (g) N,CH,0 (s) + H,0 (g) K= N2 (g) + 02 (g) 2 NO (g) K= 8. Consider the following reaction at equilibrium. 2S0, (g) 2S0, (g) + 02 (g) Predict the affect on equilibrium (will it shift left, shift right or no change?): a. Oxygen gas is removed: b. The volume is increased: c. The pressure is increased: d. SO, is added: e. SO, is added:

Consider the decomposition 4 PH3 (g) → P4 (s) + 6 H₂ (g) (Hrxn = -5.4 kJ/mol) Given the equilibrium constant for this process at 25°C is 233, what will be the value of the equilibrium constant at 37°C? (3 sf) Type your answer... of phosphene gas to form solid phosphorus and release hydrogen gas:

Consider the following endothermic reaction: 4 PCl5 (g)   ⇋⇋   P4 (s)   +   10 Cl2 (g) How will the amount of Cl2 be affected if the total pressure of the system is increased? Select one: a. The concentration of Cl2 will increase. b. The concentration of Cl2 will decrease. c. The amount of Cl2 will not change.

9:58 Consider the equilibrium system described by the chemical reaction below. At equilibrium, a 1.5 L reaction vessel contained a mixture of 5.0 x 10-² M SO3, 3.5 × 10-³ M O₂, and 3.0 × 10-³ M SO₂ at 800.0 K. What are the values of Kc and Kp for the reaction at this temperature? 2 SO₂(g) + O₂(g) = 2 SO3(g) Question 7 of 10 1 Based on the given data, set up the expression for Kc. Each reaction participant must be represented by one tile. Do not combine terms. Kc = [5.0 x 10-²] Once the expression is constructed, solve for Kc. Complete Parts 1-2 before submitting your answer. [2.3 x 10-³] [3.0 x 10-³]² 7.9 x 104 [3.5 x 10-³] [2.0 x 10-³] 2[5.0 x 10-²] 2 1.3 x 10-5 Submit = [3.0 x 10-³] [5.0 x 10-²]² 2[3.5 x 10-³] 2.1 x 10-4 Tap here or pull up for additional resources RESET [3.3 x 10-²] [3.5 x 10-³]² 2[3.0 x 10-³] 4.8 x 10³