Problem 5.35

[Grace Jansen 2A]

This problem shows a graph of three elements, A, B, and C, at their initial partial pressures and then the partial pressures of each at equilibrium. In the solutions manual, when the equilibrium constant is calculated, the partial pressures are all divided by 100 in the equation. Why are the partial pressures all divided by 100?

[Chris Tai 1B]

The kPa, which is kilopascals, has to be converted to atmospheres. Since 1 kPa = 0.00987 atm, the book is just dividing by 100 as a shortcut to complete this conversion.