Calculate the equilibrium constant for the reaction between Fe2+(aq) and Zn(s) (at 25 oC).
Friday January 15, 2016 1 Lecture 6: The Equilibrium Constant Clicker Question #1 CaCO 3s) ⇔CaO (s) + CO 2(g) Each of the following mixtures is placed in a closed container. Any solids present are in excess. 1.) pure CaCO 3 2.) CaO and a CO 2pressure greater than the value of Kp 3.) CaCO 3and CaO 4.) CaCO 3and a CO2pressure greater than the value of Kp Which cannot reach equilibrium a.) 1 b.) 2 c.) 3 d.) 4 e.) they can all reach equilibrium solution: what is the requirement to reach equilibrium Keq p (CO2= to reach equilibrium; need the C2partial pressure to equalpKps a constant at a given temperature) when CO 2pressure reaches pvalue, the system is at equilibrium #1.) pure CaCO 3 ● it will eventually reach equilibrium because when you start with CaC3it will react with regards to the forward reaction and get CO to the value of 2 p #2.) CaO and CO 2 Kp ● it will eventually reach equilibrium because when you start with the products, they will react with regards to the reverse reaction to get2to the value of p #3.) CaCO3and CaO ● it will eventually reach equilibrium because CaC3will still react with regards to the forward reaction and will produce CO2until it reaches the value op K #4.) CaCO and CO > K 3 2
