04:19What Is Dynamic Equilibrium? | Reactions | Chemistry | FuseSchoolFuseSchool - Global Education678views1rank
Multiple ChoiceWhich one of the following statements does not describe the equilibrium state?a. While at equilibrium, a dynamic process is still occurring. b. The concentration of the reactants is equal to the concentration of the products.c. The concentration of the reactants and products reach a constant level.d. At equilibrium, the net concentration of all species is not changing.e. All are true. 3200views1rank2comments
Multiple ChoiceState which is greater in amount:reactants or products, based on the given equilibrium constant, K. 1700views7rank1comments
Multiple ChoiceThe decomposition of nitrogen monoxide can be achieved under high temperatures to create the products of nitrogen and oxygen gas. 6 NO(aq) ⇌ 3 N2(aq) + 3 O2(aq) a) What is the equilibrium equation for the reaction above?b) What is the equilibrium expression for the reverse reaction. 1881views6rank4comments
Multiple ChoiceThe equilibrium constant, K, for 2 NO (g) + O2 (g) ⇌ 2 NO2 (g) is 6.9 x 102. What is the [NO] in an equilibrium mixture of gaseous NO, O2, and NO2 at 500 K that contains 1.5 x 10 –2 M O2 and 4.3 x 10 –3 M NO2?4402views11rank15comments
Multiple ChoiceIn which of the given reactants is Kp greater than, less than and equal to Kc?a) SO3 (g) + NO (g) ⇌ SO2 (g) + NO2 (g)b) P4 (s) + 5 O4 (g) ⇌ P4O10 (s)c) 4 NH3 (g) + 3 O2 (g) ⇌ 2 N2 (g) + 6 H2O (g)2884views3rank6comments
Multiple ChoiceGiven the hypothetical reaction 2 A (s) + ? B (g) ⇌ 3 C (g), Kp = 0.0105 and Kc = 0.45 at 250 degrees Celsius. What is the value of the coefficient of B? 2085views1rank9comments
Multiple ChoiceWrite the equilibrium constant expression for the following reaction: CH4 (g) + 2 H2S (g) ⇆ CS2 (g) + 4 H2 (g)364views
Multiple ChoiceWhich of the following is true about the role of solids and liquids in equilibrium processes?229views
Multiple ChoiceMethane (CH4) reacts with hydrogen sulfide to yield hydrogen gas and carbon disulfide, a solvent used in the manufacturing rayon and cellophane. What is the value of Kc at 1000 K if the partial pressures in an equilibrium mixture at 1000 K are 0.20 atm methane, 0.15 atm hydrogen sulfide, 0.30 atm carbon disulfide and 0.10 atm hydrogen gas? CH4 (g) + 2 H2S (g) ⇌ 4 H2 (g) + CS2 (g)2206views4rank9comments
Multiple ChoiceWhich of the following does not represent a heterogenous equilibrium? I) CH4(g) + 2 O2(g) ⇌ CO2(g) + 2 H2O(g) II) CO2(g) + C(s) ⇌ 2 CO(g)III) 2 H2O(l) ⇌ 2 H2(g) + O2(g)IV) CH3COOH(aq) + H2O(l) ⇌ CH3COO–(aq) + H3O+(aq)341views16rank
Textbook QuestionThe following diagrams represent a hypothetical reaction A ¡ B, with A represented by red spheres and B represented by blue spheres. The sequence from left to right represents the system as time passes. Does the system reach equilibrium? If so, in which diagram(s) is the system in equilibrium? [Sections 15.1 and 15.2] 1107views
Textbook QuestionThe concept of chemical equilibrium is very important. Which one of the following statements is the most correct way to think about equilibrium? (a) If a system is at equilibrium, nothing is happening. (b) If a system is at equilibrium, the rate of the forward reaction is equal to the rate of the back reaction. (c) If a system is at equilibrium, the product concentration is changing over time.1029views
Textbook QuestionEthene 1C2H42 reacts with halogens 1X22 by the following reaction: C2H41g2 + X21g2 Δ C2H4X21g2 The following figures represent the concentrations at equilibrium at the same temperature when X2 is Cl2 (green), Br2 (brown), and I2 (purple). List the equilibria from smallest to largest equilibrium constant. [Section 15.3] 487views
Textbook QuestionH2 and I2 are combined in a flask and allowed to react according to the reaction: H2(g) + I2(g) ⇌ 2 HI(g) Examine the figures (sequential in time) and answer the questions: a. Which figure represents the point at which equilibrium is reached?821views
Textbook QuestionIdentify the true statement about the rate of the forward and reverse reaction once a reaction has reached equilibrium. (a) The rate of the forward reaction and the reverse reaction is zero. (b) The rate of the forward reaction is greater than the rate of the reverse reaction. (c) The rate of the reverse reaction is greater than the rate of the forward reaction. (d) The rate of the forward reaction is equal to the rate of the reverse reaction.1102views
Open QuestionWhich statement correctly describes a reaction in dynamic equilibrium? At dynamic equilibrium, the reactions stop and the amounts of reactants and products do not change. At dynamic equilibrium, the reactions continue but the amounts of reactants and products do not change. At dynamic equilibrium, the reactions stop but the amounts of reactants and products are changing. At dynamic equilibrium, the reactions continue and the amounts of reactants and products are changing.953views