Kc

For the reaction 2 NO₂(g) ⇌ 2 NO(g) + O₂(g) Kp = 1.11 × 10⁻⁵ at 200 °C. A 2.50 L vessel at 200 °C is filled with NO₂(g) at an initial pressure of 3.75 atm and allowed to come to equilibrium. What will be the pressure (in atm) of NO(g) at equilibrium?

A chemical engineer is studying the following reaction: N₂(g) + 3H₂(g) → 2 NH3(g) At the temperature the engineer picks, the equilibrium constant K for this reaction is 0.018. The engineer charges ("fills") three reaction vessels with nitrogen and hydrogen, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. reaction vessel compound pressure expected change in pressure N₂ 11.46 atm ↑ increase ↓decrease (no change) H, 18.35 atm A ↑ increase ↓ decrease (no change) NH3 32.54 atm ↑ increase (no change) N₂ 10.77 atm ↑ increase ↓ decrease ↓decrease ↓decrease decrease B H₂ 16.30 atm (no change) (no change) (no change) ↑ increase 33.91 atm ↑ increase NH3 N₂₂ 11.20 atm ↑ increase ↓ decrease (no change) H₂ 17.58 atm с ↑ increase ↓decrease (no change) NH₂ 33.05 atm ↑…

The following reaction has an equilibrium constant, Kc equal to 3.59 at 900 °C. CH4(g) + 2H₂S(g) — CS2(g) + 4 H2(g) At a particular time during the reaction, the following composition has been found: [CH4(g)] = 1.20 M, [CS2(g)] = 1.15 M, [H₂S(g)] = 1.31 M, [H2(g)] = 1.85. Predict the activity of the reaction during the particular time above. The reaction should go to the left (or reverse) The reaction should go to the right (or forward) The reaction is at a standstill The reaction activity cannot be determined There is no basis for prediction.