Interpretation:
The number of spheres of the missing color that must be included to represent a system at equilibrium in each diagram is to be determined.
Concept introduction:
The
For a general reaction:
Reaction quotient is defined as the ratio of concentration of products and reactants of chemical species present in the reaction mixture at a given point of time. It is denoted with
Equilibrium constant is defined as the ratio of concentration of products and the concentration of reactants, which are in equilibrium, and its value is constant at a particular temperature. It denoted by K.
Here,
A and B are reactants, C and D are products, and
At equilibrium,
The equilibrium concentration of reactants and products, present in liquid or solid phase, in the reaction is considered to be
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Aleks 360 2 Semester Access Card For Chemistry
- 2C2H2(g) + 5O2(g) 4CO2(g) + 2H2O(g) You have 0.4 moles C2H2 and 0.2 moles O2 present initially in a 5L flask. You allow the reaction to run until it reaches equilibrium. Which of the following is the correct ICE table for this process? Question 5 options: Conc. C2H4 O2 CO2 H2O Initial 0.4 0.2 0 0 Change -x -x +x +x Equil. 0.4-x 0.2-x x x Conc. C2H4 O2 CO2 H2O Initial 0.08 0.04 0 0 Change -2x -5x +4x +2x Equil. 0.08-2x 0.04-5x 4x 2x Conc. C2H4 O2 CO2 H2O Initial 0.4 0.2 0 0 Change -2x -5x +4x +2x Equil. 0.4-2x 0.2-5x 4x 2x Conc. C2H4 O2 CO2 H2O Initial 0.08 0.04 0 0 Change -20x -20x +20x +20x Equil. 0.08-20x 0.04-20x 20x 20xarrow_forwardThe reaction shown below has an equilibrium constant value of Kp=11.50 at a certain temperature.PCl₅ (g) ⇄ PCl₃ (g) + Cl₂ (g) Kp = 11.50A container is pressurized with PCl₅ and PCl₃ until the pressure of PCl₅ is 2.750 atm and the pressure of PCl₃ is 1.500 atm. Calculate the pressure of PCl₃ in the container when the system reaches equilibrium.Answer: atm PCl₃arrow_forwardAt a given temperature, a solid sample of PH3BCl3(s) is placed in a closed vessel and allow to reach equilibrium. The reaction is given below: PH3BCl3(s) ⇌ PH3(g) + BCl3(g) Kc = 7.31× 10-3 What is the equilibrium concentration of PH3(g)? Express your answer in M using at least two significant figures. Do not use scientific notation.arrow_forward
- Reaction of nitrogen and hydrogen in the presence of a catalyst produces ammonia: N2 + 3H2 2NH3 , rHo = -92 kJ mol-1 . What would increase equilibrium concentration of the product in the mixture? A) Increase pressure, keep temperature constant B)Increase temperature, keep pressure constant C) Decrease pressure, keep temperature constant D) Information is insufficient for answerarrow_forwardConsider the hypothetical reaction, which has an equilibrium constant (Kp) of 16.1 when the reaction occurs at 167°C. 2 W (g) + X (g) <---> 3 Y (g) If the equilibrium partial pressure of W is 0.787 atm and that of Y is 1.65 atm, what will the equilibrium partial pressure (in atm) of X be? (answer in 3 significant figures)arrow_forwardAt a given temperature, the equilibrium constant (Kp) for the decomposition of dinitrogen tetraoxide to nitrogen dioxide is 0.154. If 0.198 atm N2O4 is sealed in a flask, what partial pressure (in atm) of NO2 will exist at equilibrium? (no scientific notation)N2O4(g) ⇄ 2NO2(g)arrow_forward
- The reaction of bromine gas with chlorine gas, Br2(g) + Cl2(g) ⇄ 2 BrCl(g), has a Kp value of 7.20. If 0.400 atm of both Br2 and Cl2 are placed in a closed vessel and allowed to come to equilibrium, what is the equilibrium partial pressure of BrCl(g)? (answer in atm and no scientific notation)arrow_forward2.50 mol NOCl was placed in a 2.50 L reaction vessel at 400ºC. After equilibrium was established, it was found that 28.0% of the NOCl had dissociated according to the equation 2NOCl(g) <--> 2NO(g) + Cl2(g).Calculate the equilibrium constant, Kc, for the reaction. (3 sig figs) ( ICE table with all numbers, no unknown x)arrow_forward5,Consider the following reaction: COBr2(g) ⇌ CO(g) + Br2(g); Kc is 0.19 at 73 °C. If an initial concentration was 0.63 M COBr2 what are the equilibrium concentrations of COBr2, CO, and Br2? Hint: use RICE TABLE Group of answer choices [COBr2] = 0.30 M, [CO] = 0.33 M, [Br2] = 0.33 M [COBr2] = 0.63 M, [CO] = 0.35 M, [Br2] = 0.35 M [COBr2] = 0.28 M, [CO] = 0.35 M, [Br2] = 0.35 M [COBr2] = 0.11 M, [CO] = 0.26 M, [Br2] = 0.26 M [COBr2] = 0.37 M, [CO] = 0.26 M, [Br2] = 0.26 M 6.The equilibrium constant Kc for the following reaction at 927oC is 3.92 x 10-2. What is Kp at this temperature? CO(g) + 3 H2(g) ⇌ CH4(g) + H2O(g) Group of answer choices 3.80 x 10-4 2.48 x 105 4.16 x 10-8 4.04 x 10-6 3.92arrow_forward
- issue 6Choose the equilibrium in which the products are favored by a drop in pressure and the reactants favored by a drop in temperature.a) N2(g) + 3 H2(g) ⇔ 2 NH3(g) + 92.3 kJb) H2(g) + I2(g) + 51.8 kJ ⇔ 2 HI(g)c) PCl3(g) + Cl2(g) ⇔ PCl5(g) ΔH = -84.2 kJd) 2 NO2(g) ⇔ 2 NO(g) + O2(g) ΔH = +54 kJarrow_forwardConsider the following equilibrium: 2HF(g)⇌H2(g)+F2(g) At equilibrium, the concentration of hydrogen fluoride gas, hydrogen gas, and fluorine gas are 2.04 mol/L, 2.47 mol/L, and 1.89 mol/L. What is the value of the equilibrium constant? Answer to 3 decimal places.arrow_forwardIf the Kc for this reaction is 9/4, which of the following diagrams represents the molecules in an equilibrium mixture? In the diagrams, A atoms are orange and B atoms are green. Picture Attachedarrow_forward
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