At 298 K, the formation of ammonia has a negative ASº, sys H2(g) + 3H2(g) = 2NH3(g) AS sye= -197 J/K Calculate AS°and state whether the reaction occurs spontaneously at this temperature.

The equilibrium constant for the reaction N₂ + O₂2NO is 1.69 × 10-³ at 2300 K. A mixture consisting of 2 mol of nitrogen and 1.0 mol of oxygen is heated to 2300 K at 1 bar and allowed to come to equilibrium. Calculate the mole fraction of NO at equilibrium.

The equilibrium constant for the reaction of nitrogen and hydrogen to give ammonia is 0.118 at 745 K. The balanced equilibrium equation is as follows: N2(g) + 3H₂(g) = 2NH3(g) What is Kp for this reaction at the same temperature? (R: 0.082 L atm/mol.K)

* The standard reaction enthalpy for the hydrogenation of propene is -124 KJ/mole. The standard reaction enthalpy for the combustion of propane is -2220 KJ/mole. What is the standard enthalpy of combustion (in KJ/mole) of propene given that the enthalpy of formation for liquid water is -285.5 KJ/mole? NOTE: Express answer in the NEAREST WHOLE NUMBER.