Consider the following equilibrium: N2 (g) + 3H, (g) – 2NH, (g) AG= - 34. kJ Now suppose a reaction vessel is filled with 1.96 atm of nitrogen (N,) and 2.65 atm of ammonia (NH,) at 505. °C. Answer the following questions about this system: O rise Under these conditions, will the pressure of NH, tend to rise or fall? O fall Is it possible to reverse this tendency by adding H,? In other words, if you said the pressure of NH, will tend to rise, can that yes be changed to a tendency to fall by adding H,? Similarly, if you said the no pressure of NH, will tend to fall, can that be changed to a tendency to rise by adding H,? If you said the tendency can be reversed in the second question, calculate atm the minimum pressure of H, needed to reverse it. Round your answer to 2 significant digits.

Consider the reaction: CO(g) + Cl₂(g) COC12 (g) € Kp At equilibrium, this reaction is At equilibrium, the rates of→ and reaction are equal. At equilibrium, reactant and product concentrations are constant. Reactions continue after equilibrium has been reached. Decreasing the temperature changes the K, value for this reaction. Removing COC1₂(g) changes the value of K, for this reaction. For the reaction: COCI, (g) = CO(g) + Cl₂(g), the value of K, is equal to 6.7 x 10¹1 at 25°C V V

Consider the following equilibrium: 2NH₂ (g)-N₂ (g) + 3H₂(g) AG-34. KJ Now suppose a reaction vessel is filled with 4.85 atm of ammonia (NH3) a system: Under these conditions, will the pressure of H, tend to rise or fall? Is it possible to reverse this tendency by adding N₂? In other words, if you said the pressure of H, will tend to rise, can that be changed to a tendency to fall by adding N₂? Similarly, if you said the pressure of H₂ 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. and 2.40 atm of hydrogen (H₂) at 658. °C. Answer the following questions about this Ⓒrise O fall yes no atm 10 10 X S

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.