#### Chemical Equilibrium**Question 15:**For the reaction: \[ \text{N}_2\text{O}_4(g) \rightleftharpoons 2\text{NO}_2(g) \] \[ K_c = 0.15 \text{ at } 25 °C \]We initially mixed 3 M (Molar) of \( \text{N}_2\text{O}_4 \) gas with 1 M of \( \text{NO}_2 \) gas in a 1.0 L sealed flask and allowed the reaction to reach equilibrium. Before equilibrium is reached, in which direction will the reaction be shifted to reach equilibrium?a. Reaction will shift **L --> R** b. Reaction will shift **L <-- R** c. **Reaction is at equilibrium, no shift** d. **None of the above** ### Equilibrium Constant and Reaction Direction:The equilibrium constant \( K_c \) is given as 0.15 at 25 °C. The initial concentrations are:- \( \text{N}_2\text{O}_4 \): 3 M - \( \text{NO}_2 \): 1 M **Reaction Quotient (\( Q \)):**To determine the direction in which the reaction will proceed, we calculate the reaction quotient \( Q \):\[ Q = \frac{[\text{NO}_2]^2}{[\text{N}_2\text{O}_4]} \]\[ Q = \frac{(1)^2}{3} = \frac{1}{3} = 0.33 \]**Comparison with \( K_c \):**- If \( Q < K_c \), the reaction shifts right (towards the products).- If \( Q > K_c \), the reaction shifts left (towards the reactants).- If \( Q = K_c \), the reaction is at equilibrium.In this case:\[ Q < K_c \quad \text{(0.33 < 0.15)} \]Therefore, the reaction will shift to the **right** to reach equilibrium.**Answer:**a. Reaction will shift **L --> R**

The reaction given is Also the initial concentration of gases given are [NO2] = concentration of…

15). For the reaction: N½O4(g) 2 2NO2(g) We initially mixed 3 M of N,O4 gas with 1 M of NO2 gas in a 1.0 L sealed flak and allowed the reaction to reach equilibrium. Before equilibrium is reached, which direction will the reaction be shifted toward to reach equilibrium? K = 0.15 at 25 °C a. Reaction will shift L --> R b. Reaction will shift L <-- R d. none of the above c. Reaction is at equilibrium, no shift

15). For the reaction: N½O4(g) 2 2NO2(g) We initially mixed 3 M of N,O4 gas with 1 M of NO2 gas in a 1.0 L sealed flak and allowed the reaction to reach equilibrium. Before equilibrium is reached, which direction will the reaction be shifted toward to reach equilibrium? K = 0.15 at 25 °C a. Reaction will shift L --> R b. Reaction will shift L <-- R d. none of the above c. Reaction is at equilibrium, no shift

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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