Students practice using "ICE" tables (Initial, Change, Equilibrium) to find the number of moles of each substance at equilibrium. Part 2: Mole Fractions and Partial Pressures:
Once you have the equilibrium moles, you can find the partial pressure of each gas, which is required for cap K sub p Mole Fraction ( x sub cap A Calculated as the moles of substance divided by the total moles of all gas particles. The sum of all mole fractions must equal Partial Pressure ( p sub cap A Multiply the mole fraction by the total pressure ( cap P sub total end-sub The sum of partial pressures must equal the total pressure. cap K sub p Expressions and Units cap K sub p constant is written similarly to cap K sub c , but uses partial pressures ( ) instead of concentrations. International School of Siem Reap – ISSR Expression: For a reaction chemsheets a2 1079 answers