For each of the following reactions, indicate if the equilibrium mixture contains mostly products, mostly reactants, or both reactants and products:
a.
b.
c.
d.
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Basic Chemistry
- At 2000 °C the equilibrium constant for the reaction 2NO(g) = N2(g) + O2(g) is Kc = 2.4 x 10³. Part A If the initial concentration of NO is 0.175 M, what is the equilibrium concentration of NO? Express your answer to two significant figures and include the appropriate units. -4.8.10² Submit Part B X Incorrect; Try Again; 4 attempts remaining Value Submit If the initial concentration of NO is 0.175 M, what is the equilibrium concentration of N₂? Express your answer to two significant figures and include the appropriate units. Part C 0 UA M Previous Answers Request Answer Submit Value ΠΑ Units Request Answer If the initial concentration of NO is 0.175 M, what is the equilibrium concentration of O2? Express your answer to two significant figures and include the appropriate units. www ? Units Request Answer ? **** ?arrow_forward(12a) The equilibrium constant, Kp, for the following reaction is 0.636 at 600K. COCl2(g) CO(g) + Cl2(g)If an equilibrium mixture of the three gases in a 19.1 L container at 600K contains COCl2 at a pressure of 0.539 atm and CO at a pressure of 0.606 atm, the equilibrium partial pressure of Cl2 is _____ atm. (b) Consider the following reaction:COCl2(g) CO(g) + Cl2(g) If 4.06×10-2 moles of COCl2, 0.269 moles of CO, and 0.280 moles of Cl2 are at equilibrium in a 10.8 L container at 686 K, the value of the equilibrium constant, Kp, is ________arrow_forwardConsider the following equilibrium for which H = -114.44: 4 HCl(g) + O2(g) 2 Cl2(g) + 2 H2O(g) How will each of the following changes affect an equilibrium mixture of the 4 gases in this reaction?(a) O2(g)) is added to the system. The equilibrium will not shift The equilibrium will shift toward product but Keq will not change The equilibrium will shift toward reactant but Keq will not change The equilibrium will shift toward product but Keq will will increase The equilibrium will shift toward reactant but Keq will decrease(b) The reaction mixture is cooled. (c) The volume of the reaction vessel is reduced by 50%.arrow_forward
- At high temperatures nitrogen (N2) and oxygen (O2) will react to form NO.N2(g) + O2(g) ⇆ 2 NO(g) (4.1)The value for the equilibrium constant for reaction 4.1 is KC = 2.7 x 10^-17 at some temperature T.A system initially has [N2] = 0.0800 M and [O2] = 0.0500 M. There is no NO initially present inthe system. Find the value for [NO] that will be present at equilibrium.arrow_forward4 (a) Calculate the value of Kc for the reaction: PCI5 (g) PC13 (g) Cl2 (g) AH = Positive Given that when 8.4 mol of PCI5 (g) is mixed with 1.8 mol of PCI3 (g) and allowed to come to equilibrium in a 10 dm³ container the amount of PCI5 (g) at equilibrium is 7.2 mol. Kc = (b) Explain the effect of the following changes below on the value of Kc: (i) Increasing temperature (ii) Lowering the concentration of chlorine (Cl2) (iii) Addition of a catalystarrow_forwardWill the equilibrium be established when following compounds are kept in a closed container and allowed time for equilibrium? (5)CaCO3(s) = CaO(s) + CO2(g)(a) CaCO3(s)(b) CaO(s) and CO2(g) at a pressure greater than the value of Kp(c) CaCO3(s) and CO2(g) at a pressure greater than the value of Kp(d) CaCO3(s) and CaO(s)(e) CaO(s) and CO2(g) at a pressure smaller than the value of Kparrow_forward
- 7. 2CO2 (g) 200(g) + O2 (g). It was found that at 20 OC, the total pressure at equilibrium is 2.9 atm and that of CO2 is 0.8 atm. Calculate K. (Answer 2.14)arrow_forward(#30) The Equilibrium Constant and the "ICE Chart" Phosphorus pentachloride gas is formed according to the reaction by adding chlorine gas to phosphorus trichloride gas. Then the reaction reaches equilibrium. The equilibrium constant, Kc, equals 49.0 at 230°C. If 0.500 mole each of the reactants are added to a 5-L container, what is the equilibrium composition at 230°C? (30a) In blank #1, type-in our answer for the concentration of phosphorus pentachloride in the product at equilibrium. The unit is Molarity, but enter only the value of your answer with two decimal places. (30b) In blank #2, type in your answer for the concentration of phosphorus trichloride at equilibrium with two decimal places. (30c) In blank #3, type in your answer for the concentration of chlorine gas at equilibrium with two decimal places.arrow_forwardConsider the following equilibrium for which H = -114.44: 4 HCl(g) + O2(g) 2 Cl2(g) + 2 H2O(g) How will each of the following changes affect an equilibrium mixture of the 4 gases in this reaction?(a) O2(g)) is added to the system. which will happen? the equilibrium will not shift the equilibrium will shift toward product but Keq will not change the equilibrium will shift toward reactant but Keq will not change the equilibrium will shift toward product and Keq will increase the equilibrium will shift toward reactant and Keq will decrease (b) The reaction mixture is cooled. the equilibrium will not shift the equilibrium will shift toward product but Keq will not change the equilibrium will shift toward reactant but Keq will not change the equilibrium will shift toward product and Keq will increase the equilibrium will shift toward reactant and Keq will decrease (c) The volume of the reaction vessel is reduced by 50%. (d) A catalyst is added to the reaction mixture. (e)…arrow_forward
- 15.17 When the following reactions come to equilibrium, does the equilibrium mixture contain mostly reactants or mostly products? Kc = 1.5 × 10-10 (b) 2 SO2(8) + O2(8) = 2 S03(g) K,= 2.5 x 10° (a) N2(8) + O2(8) = 2 NO(g) %3Darrow_forwardIron(III) oxide and hydrogen react to form iron and water, like this: Fe,O3(s)+3 H,(g)-2 Fe(s)+3 H,0(9) At a certain temperature, a chemist finds that a 2.7 L reaction vessel containing a mixture of iron(III) oxide, hydrogen, iron, and water at equilibrium has the following composition: compound amount Fe,O3 3.66 g H2 4.09 g Fe 4.46 g H2O 1.82 g Calculate the value of the equilibrium constant K for this reaction. Round your answer to 2 significant digits. Explanation Check O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy I Accessibility 29 MacBook Air D00 吕口 F3 F10 D00 F4 F5 F7 F8 F2 23 & 4 5 7 8 9 E R T Y | K L LLarrow_forward7 4 (a) Calculate the value of Kc for the reaction: PC15 (2) PC13 (g) + Cl2 (g) AH = Positive Given that when 8.4 mol of PCls (g) is mixed with 1.8 mol of PC13 (g) and allowed to come to equilibrium in a 10 dm³ container the amount of PCls (g) at equilibrium is 7.2 mol. Kc = (b) Explain the effect of the following changes below on the value of Kc: (1) Increasing temperature (ii) Lowering the concentration of chlorine (Cl2) (iii) Addition of a catalystarrow_forward
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