The equilibrium constant for the formation of sulfur trioxide, SO3, from sulfur dioxide, SO2, and oxygen, O2, SO2(g) + (1)/(2) O2(g) ⇌ SO3(g) is 2.643 x 1012 at 298 K. The standard reaction enthalpy is -98.9 kJ mol-1. Calculate the value of the equilibrium constant at 308 K. Assume that the standard reaction enthalpy is constant over this temperature range.

Do not give handwriting solution. Given the following equilibrium reaction and equilibrium constant at 300 K: 2 SO3 (g) ⇌ O2 (g) + 2 SO2 (g) Kp = 0.049 calculate the equilibrium constant (Kp) for the following reaction at the same temperature. Enter your answer with no units. 3 O2 (g) + 6 SO2 (g) ⇌ 6 SO3 (g) Kp = ?

Nitrogen and hydrogen react to form ammonia, like this: N2 (g)+3H,(g) 2NH;(g) Suppose a mixture of N,, H, and NH, has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. alo perturbation change in composition shift in equilibrium Ar to the right The pressure of N, will to the left Some H, is removed. The pressure of NH, will (none) to the right The pressure of N, will ? to the left Some NH, is added. The pressure of H, will v ? O (none) go up. go down. not change.

13) Consider the reaction between nitrogen and steam: 2N₂(g) + 6H₂0(g) ⇒ 4NH3(g) + 30₂(g) At a certain temperature, K = 28.6. Calculate the equilibrium partial pressure of steam if PNH₂ = 1.75 atm, Po₂ = 0.963 atm, and P№₂ = 0.996atm at equilibrium.

For the reaction X(g)+3Y(g)⇌3Z(g) Kp = 1.95\times 10−2 at a temperature of 81 ∘C . Calculate the value of Kc .

The equilibrium constant for the chemical equation N2(g)+3H2(g)↽−−⇀2NH3(g) N 2 ⁡ ( g ) + 3 ⁢ H 2 ⁡ ( g ) ⁢ ↽ − − ⇀ ⁢ 2 ⁢ NH3(g) is Kp = 0.249 at 253 ∘C. 253 ⁢∘ C. Calculate the value of Kc for the reaction at 253 ∘C

Consider the equilibrium system described by the chemical reaction below, which has a value of Kc equal to 4.10 × 10⁻⁴ at a high temperature. If 0.20 mol N₂ and 0.15 mol O₂ react in a 1.0 L vessel, what will the equilibrium concentration of O₂ be? N₂(g) + O₂(g) ⇌ 2 NO(g)     A )Set up the expression for Qc and then evaluate it to determine the direction of the reaction. Do not combine or simplify terms.    Qc = _____/_____ = _____   Based on the given values and your value for Qc, set up ICE table in order to determine the unknown.          Based on your ICE table, set up the expression for Kc in order to determine the unknown. Do not combine or simplify terms. Kc = (________) / (_______)= 4.10 × 10⁻⁴   Based on your ICE table and expression for Kc, solve for the concentration of O₂ at equilibrium. [O₂]eq = _____M