Consider this reaction at equilibrium: 2 H2O2(g) = 2 H20(g) + O2(g) AH°rxn = -210 kJ/mol Which of the following disturbances will cause the reaction to shift to produce more O2(g)? (Selec all that apply.) Volume of the container is reduced at constant temperature. The temperature is decreased. The temperature is increased. The partial pressure of H20(g) is decreased. Volume of the container is expanded at constant temperature. The partial pressure of H2O2lg) is increased. O00000

Consider this reaction at equilibrium: 2 H2O2(g) = 2 H20(g) + O2(g) AH°rxn = -210 kJ/mol Which of the following disturbances will cause the reaction to shift to produce more O2(g)? (Selec all that apply.) Volume of the container is reduced at constant temperature. The temperature is decreased. The temperature is increased. The partial pressure of H20(g) is decreased. Volume of the container is expanded at constant temperature. The partial pressure of H2O2lg) is increased. O00000

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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Consider the following equilibrium: 2NH, (g) N₂(g) + 3H₂(g) AG-34. kJ Now suppose a reaction vessel is filled with 1.84 atm of ammonia (NH,) and 3.68 atm of nitrogen (N₂) at 1070. °C. Answer the follow system: 1 Under these conditions, will the pressure of N₂ tend to rise or fall? Is it possible to reverse this tendency by adding H₂? In other words, if you said the pressure of N, will tend to rise, can that be changed to a tendency to fall by adding H₂? Similarly, if you said the pressure of N₂ will tend to fall, can that be changed to a tendency to rise by adding H₂? If you said the tendency can be reversed in the second question, calculate the minimum pressure of H₂ needed to reverse it. Round your answer to 2 significant digits. rise O fall O yes O no 0 atm 0.9 X
M38.
N2(g) + 3H2 (g) = 2NH3 (g) AH°pn =-92 kJ Which of the following changes would cause the value of K for this reaction to increase? You can choose any combination of answers. Decreasing the volume of the reaction container. Heating the reaction container Cooling the reaction container Adding Helg) to the reaction container removing NH3(g) from reaction container.
At -7.73 °C the pressure equilibrium constant K, =6.8 × 10° for a certain reaction. Here are some facts about the reaction: • The constant pressure molar heat capacity C, 1.76 J·mol -1. K¯!. • If the reaction is run at constant pressure, the volume increases by 14.%. The initial rate of the reaction is 11. mol·L - 1 -1 •S O Yes. Using these facts, can you calculate K, at 15. °C? O No. If you said yes, then enter your answer at right. Round it to 2 significant digits. Yes, and K, will be bigger. If you said no, can you at least decide whether K at Yes, and K, will be 15. °C will be bigger or smaller than K, at -7.73 °C? smaller.
At - 19.4 °C the pressure equilibrium constant K = 6.3 x 10' for a certain reaction. Here are some facts about the reaction: • The net change in moles of gases is -1. If the reaction is run at constant pressure, the volume increases by 12.%. If the reaction is run at constant pressure, 138. kJ/mol of heat are released. ○ Yes. Using these facts, can you calculate K, at -26. °C? ○ No. If you said yes, then enter your answer at right. Round it to 2 significant digits. at If you said no, can you at least decide whether K -26. °C will be bigger or smaller than K,, at -19.4 °C? 0 Yes, and K,, will be bigger. Yes, and K, will be smaller. ○ No. X
Consider the following system at equilibrium where Ho = 18.8 kJ, and Kc = 9.52E-2, at 350 K: CH4(g) + CCl4(g) 2 CH2Cl2(g) If the VOLUME of the equilibrium system is suddenly decreased at constant temperature: whats the value of Kc The value of Q The reaction must
Consider the following system at equilibrium where H° = -111 kJ/mol, and Kc = 0.159, at 723 K. N2(g) + 3H2(g) 2NH3(g) If the TEMPERATURE on the equilibrium system is suddenly decreased: The value of Kc fill in the blank 1 A. increases. B. decreases. C. remains the same. The value of Q fill in the blank 2 A. is greater than Kc. B. is equal to Kc. C. is less than Kc. The reaction must: fill in the blank 3 A. run in the forward direction to reestablish equilibrium. B. run in the reverse direction to reestablish equilibrium. C. remain the same. It is already at equilibrium. The concentration of H2 will: fill in the blank 4 A. increase. B. decrease. C. remain the same.
DUE NOW. Please answer it all correctly.
Consider the following equilibrium: N2 (g)+3H2(g)2NH3 (g) AG = -34. kJ Now suppose a reaction vessel is filled with 2.15 atm of nitrogen (N2) and 2.19 atm of ammonia (NH3) at 236. °C. Answer the following questions about this system: OO rise ☐ x10 fall OO Under these conditions, will the pressure of NH3 tend to rise or fall? Is it possible to reverse this tendency by adding H₂? In other words, if you said the pressure of NH3 will tend to rise, can that be changed to a tendency to fall by adding H2? Similarly, if you said the pressure of NH3 will tend to fall, can that be changed to a tendency to rise by adding H₂? If you said the tendency can be reversed in the second question, calculate the minimum pressure of H2 needed to reverse it. Round your answer to 2 significant digits. yes no ☐ atm S
9) Given the following equilibrium reaction below, indicate which direction the reaction will shift when the indicated stresses are applied (à, ß, or none), AND indicate how the K value will change (increase, decrease or stays same) with the stress. P = 1 atm, unless otherwise specified. CO(g) + Cl2(g) ó COCl2(g) H = –107.6 kJ/mol What will happen if:ShiftK value i) The pressure is quadrupled________________________ ii) The reaction temperature is decreased_________________________ iii) More COCl2 gas is added_________________________ iv) The volume is doubled_________________________
Consider the following equilibrium: N₂(g) + 3H₂(g)2NH3(g) AG = -34. KJ Now suppose a reaction vessel is filled with 3.40 atm of hydrogen (H₂) and 9.24 atm of ammonia system: Under these conditions, will the pressure of NH3 tend to rise or fall? Is it possible to reverse this tendency by adding N₂? In other words, if you said the pressure of NH3 will tend to rise, can that be changed to a tendency to fall by adding N₂? Similarly, if you said the pressure of NH3 will tend to fall, can that be changed to a tendency to rise by adding N₂? If you said the tendency can be reversed in the second question, calculate the minimum pressure of N₂ needed to reverse it. Round your answer to 2 significant digits. rise O fall yes Ono X (NH3) at 736. °C. Answer the following questions about this S
Consider the decomposition 4 PH3 (g) → P4 (s) + 6 H₂ (g) (Hrxn = -5.4 kJ/mol) Given the equilibrium constant for this process at 25°C is 233, what will be the value of the equilibrium constant at 37°C? (3 sf) Type your answer... of phosphene gas to form solid phosphorus and release hydrogen gas: