Nitrogen monoxide and water react to form ammonia and oxygen, like this: Mar 4 NO(g)+6H,0(g) → 4 NH3(g)+50,(g) The reaction is endothermic. Suppose a mixture of NO, H,O, NH, and O, 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 change in composition shift in equilibrium to the right The temperature is O to the left The pressure of NH3 will ? lowered. O (none) O to the right O to the left The temperature is raised. The pressure of H20 will ? O (none) Prkvncy: 02022 McGraw Hill LLC A Rghts Reserved erms of Use Check Explanation 55°F Clear DELL

Nitrogen monoxide and water react to form ammonia and oxygen, like this: Mar 4 NO(g)+6H,0(g) → 4 NH3(g)+50,(g) The reaction is endothermic. Suppose a mixture of NO, H,O, NH, and O, 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 change in composition shift in equilibrium to the right The temperature is O to the left The pressure of NH3 will ? lowered. O (none) O to the right O to the left The temperature is raised. The pressure of H20 will ? O (none) Prkvncy: 02022 McGraw Hill LLC A Rghts Reserved erms of Use Check Explanation 55°F Clear DELL

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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H₂O(g) + CO(g) = H₂(g) + CO₂(g) Which of the following statements are true and which are false. The rate at which equilibrium is established can be inferred from the magnitude of the equilibrium constant. indefinite period of time ¹C would still be found only in the CO molecules and not in CO₂. When Q < K the system will spontaneously shift to the left. At equilibrium, the overall composition of the reaction mixture is constant. two vessels are equivalent. 2
Nitrogen and hydrogen react to form ammonia, like this: N2 (g)+3H,(g) 2NH;(g) Suppose a mixture of N,, H, and NH, 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. alo perturbation change in composition shift in equilibrium Ar to the right The pressure of N, will to the left Some H, is removed. The pressure of NH, will (none) to the right The pressure of N, will ? to the left Some NH, is added. The pressure of H, will v ? O (none) go up. go down. not change.
Consider the equilibrium system described by the chemical reaction below. The decomposition of NOBr has a value Kc equal to 3.07 × 10⁻⁴ at 297 K. If an initial solution of 0.20 M NOBr decomposes, what will the concentration of NO be at equilibrium?
Nitrogen and hydrogen react to form ammonia, like this: N,(9)+3H,(9)→ 2NH;(g) The reaction is exothermic. Suppose a mixture of N,, H, and NH, 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 change in composition shift in equilibrium Oto the right The temperature is lowered. O to the left The pressure of N, will O (none) O to the right O to the left The temperature is raised. The pressure of NH3 will O (none)
Nitrogen monoxide and ozone react to form nitrogen dioxide and oxygen, like this: NO(g) + O₂(g) → NO₂(g) + O₂(g) The reaction is exothermic. Suppose a mixture of NO, O3, NO₂ and O₂ 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 change in composition The temperature is raised. The pressure of O3 will The temperature is lowered. ? The pressure of NO₂ will ? shift in equilibrium O to the right to the left O (none) O to the right to the left O (none) X
Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills a 200. mL flask with 1.1 atm of ammonia gas, and when the mixture has come to equilibrium measures the partial pressure of hydrogen gas to be 1.2 atm. Calculate the pressure equilibrium constant for the decomposition of ammonia at the final temperature of the mixture. Round your answer to 2 significant digits. K = 0 P X Ś
A student ran the following reaction in the laboratory at 696 K: 2HI(g) H2(g) + I2(g) When he introduced HI(g) at a pressure of 3.40 atm into a 1.00 L evacuated container, he found the equilibrium partial pressure of HI(g) to be 2.68 atm. Calculate the equilibrium constant, Kp, he obtained for this reaction. Kp =
Carbon disulfide and oxygen react to form carbon dioxide and sulfur dioxide, like this: CS₂(g) +30₂(g) CO₂(g) +2SO₂(g) Suppose a mixture of CS2, O2, CO2 and SO₂ 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 O₂ is added. - Some CO₂ is removed. change in composition The pressure of CS₂ will The pressure of CO₂ will The pressure of CS₂ will The pressure of O₂ will ? ? ? ? ↑ ↑ ↑ ↑ shift in equilibrium X O OOO to the right to the left (none) to the right to the left O (none)
A 3 L flask is filled with 0.45 mol SO3, 0.50 mol SO2, and 0.20 mol O2, and allowed to reach equilibrium. Assume the temperature of the mixture is chosen so that Kc = 0.12. Predict the effect on the concentration of SO3 as equilibrium is achieved by using Q, the reaction quotient. 2SO3(g) ⇆ 2 SO2(g) + O2(g) [SO3] will decrease because Q > K. [SO3] will decrease because Q < K. [SO3] will increase because Q < K [SO3] will increase because Q > K. [SO3] will remain the same because Q = K.
Daniela A chemical engineer is studying the following reaction: 2 H,S(g)+302(g) → 2 SO2(g)+2H,O(g) At the temperature the engineer picks, the equilibrium constant K for this reaction is 2.0. The engineer charges ("fills") four reaction vessels with hydrogen sulfide and oxygen, and lets the reaction begin. She then measures the composition of the mixture inside each vessel from time to time. Her first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time she measures the compositions. reaction vessel compound expected change in pressure pressure H, S 1.52 atm O t increase O I decrease O (no change) 0, 8.80 atm O t increase O I decrease O (no change) A so, 9.53 atm O t increase O I decrease O (no change) H,0 5.94 atm O f increase O I decrease O (no change) H, S 0.79 atm O t increase O I decrease O (no change) 6.91 atm Ot increase O l'decrease O (no change) so, 8.61 atm O t increase O I decrease O (no change) H,0…
Acetylene and oxygen react to form carbon dioxide and water, like this: 2C,H,(g)+50,(g) → 4CO,(g)+2H,0(g) Suppose a mixture of C,H2, O2, CO, and H,O 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. olo perturbation change in composition shift in equilibrium Ar to the right The pressure of C,H, will v ? to the left Some H,0 is removed. go up. The pressure of O, will (none) go down. not change. to the right The pressure of O, will ? to the left Some C,H, is added. The pressure of CO, will O (none)