Indicate whether either an increase or a decrease of pressure obtained by changing the volume would increase the amount of product in each of the following reactions. a. H₂(g) + F2 (g) → 2HF (g) O An increase of pressure increases the amount of product. O A decrease of pressure increases the amount of product. O Pressure change has no effect. b. 2NO(g) + Br2 (g) 2NOBr2 (9) O An increase of pressure increases the amount of product. O A decrease of pressure increases the amount of product. O Pressure change has no effect. N₂O4 (9) 2NO2 (9) O An increase of pressure increases the amount of product. O A decrease of pressure increases the amount of product. O Pressure change has no effect. C.

= O KINETICS AND EQUILIBRIUM Using Le Chatelier's Principle to predict the result of changing... Acetylene and oxygen react to form carbon dioxide and water, like this: 2C₂H₂(g) +50₂(g) → 4CO₂ (g)+2H₂O(g) Suppose a mixture of C₂H₂, O₂, CO₂ and H₂O has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation Some H₂O is removed. Some C₂H, is added. change in composition The pressure of C₂H₂ will The pressure of O₂ will The pressure of O₂ will The pressure of CO₂ will ? ? ? ? ? V go up. go down. not change. shift in equilibrium O to the right to the left x O (none) 3/5 to the right to the left (none)

Consider the reaction: 2S (s) + 30₂ (9)2SO3(g) Write the equilibrium constant for this reaction in terms of the equilibrium constants, K₁ and K₂, for the reactions below: 3 80 For answers with both a subscript and a superscript, enter the subscript first. For example, enter K if the first equilibrium constant should be squared. K = E D S(s) + O2(g) → SO₂(g) K₁ SO₂(g) + 1/2O₂(g) SO3(9) K₂ 13 с Submit Answer $ 888 FA F4 R F Show Hint V Retry Entire Group 9 more group attempts remaining % 5 T Cengage Learning Cengage Technical Support F G 6 B MacBook Air FO Y H & 7 N F7 U J * 00 8 ➤11 FO I M ( 9 V K O < H дв ) O L F10 question. P command F11 A ; Previous { + alt #2 “ . ? option Save and Exit I 1 delete 1 ente re

Consider the following equilibrium reaction: 2 NO (g)   +   O2 (g)   ⇋⇋   2 NO2 (g) What is the Kc expression? Select one: a. Kc=[NO2][NO][O2]Kc=[NO2][NO][O2] b. Kc=[NO2]2[NO]2+[O2]Kc=[NO2]2[NO]2+[O2] c. Kc=[NO]2[O2][NO2]2Kc=[NO]2[O2][NO2]2 d. Kc=2∗[NO2]2∗[NO][O2]Kc=2∗[NO2]2∗[NO][O2] e. Kc=[NO2]2[NO]2[O2]

17. The following equilibrium system was found to contain 0.040M formaldehyde (CH₂O) at equilibrium. CH₂O(g) → H2(g) + CO(g) ΔΗ > 0 a. If the original concentration of formaldehyde was 0.080M, what is the equilibrium constant for this reaction? b. Suppose you needed to produce formaldehyde using the reverse reaction. Provide 3 different ways to increase the production of formaldehyde, explaining how each method would help.

Indicate whether either an increase or a decrease of pressure obtained by changing the volume would increase the amount of product in each of the following reactions. a. H2 (g) + F2 (9)= 2HF(g) O An increase of pressure increases the amount of product. OA decrease of pressure increases the amount of product. OPressure change has no effect. b. CO2(9) + CFA(g) 2COF2 (g) O An increase of pressure increases the amount of product. OA decrease of pressure increases the amount of product. OPressure change has no effect. 2NO2 (9) = N2O4(9) C. O An increase of pressure increases the amount of product. OA decrease of pressure increases the amount of product. O Pressure change has no effect.

What is the Law of Mass Action for the following reversible reaction in the gas phase?          H2  +  I2  double arrow  2 HI     [HI]2 / ([I2] X [H2])     2 ([I2] X [H2]) / [HI]      2[HI] / ([I2] + [H2])     ([I2] X [H2])2 / 2 [HI]