Consider the following equilibrium reaction: H₂O + H₂O H₂O* + OH¯ When Sr(OH)2 is added, the equilibrium will shift to the OA. left and H30* decreases. left and [H3O+] increases. O B. O C. Nothing shifts. No Change in Equilibrium O Dright and H3O* increases.

When a reaction is said to have reached equilibrium, it means A- The reaction in both directions have stopped. B- The rate of the forward reaction is higher than that of the reverse reaction. C- The concentration of reactant and product are equal. D- The concentration of reactant and products do not change over time. E- The rate of the forward reaction is lower than that of the reverse reaction.

Consider the following reaction at equilibrium:  2CO2 (g)  2CO (g) + O2 (g)           H = -514 kJ Le Chatelier’s principle predicts that __________will result in an increase in the number of moles of O2

title=q10a8 What conclusion can you make about the position of equilibrium for the following reaction? A BAG = +1.0 kJ/mol the ratio of B to A will be less than one O the ratio of B to A will be greater than one O the ratio of B toA will be exactly 1 O the ratio of B to A will be exactly -1 O no conclusions can be made about the ratio of B to A from the information given

If the reaction quotient (Q) is greater than the equilibrium constant (K) for a reaction then O a. the reaction can proceed both forward and backward directions. O b. the reaction will stop. O c. the reaction will proceed toward reactants. O d. the reaction will proceed toward products. O e. the reaction is at equilibrium and the reaction will proceed at equal rates in the reverse and forward direction. Previous page os://moodle.umo.edu/mod/quiz/attempt.php?attempt3893185&cmid%3D1323382&page%=D2%#

# 4, 5, and 6

Suppose the reaction system: UO2 (s) + 4 HF (g) ← UF4 (g) + 2 H₂O (g) has already reached equilibrium. Predict the effect that each of the following changes will have on the direction of the reaction to reestablish equilibrium. Indicate whether the reaction will shift to the left, to the right, or no change. a. Additional UO2 is added to the system. b. The reaction is performed in a glass reaction container and the HF begins to react with the glass. c. Water vapor is removed. d. The pressure is increased.

#4

3H2(g) + N2(g) ⟷⟷ 2NH3(g) + Heat

How will an increase in temperature affect the following equilibrium? How will a decrease in the pressure of the reaction vessel affect it? 302 (g) 203 (g) AH = 285 kJ An increase in temperature will shift the equilibrium to the left; a decrease in the pressure of the reaction vessel will shift the equilibrium to the right O An increase in temperature will shift the equilibrium to the right; a decrease in the pressure of the reaction vessel will shift the equilibrium to the right O An increase in temperature will shift the equilibrium to the right; a decrease in the pressure of the reaction vessel will shift the equilibrium to the left. An increase in temperature will shift the equilibrium to the left; a decrease in the pressure of the reaction vessel will not affect the equilibrium