11.89 Part b

[Alex Kashou]

Why are all the values divided by 100 when calculating the K. I understand how they got the stoichiometric coefficients by making an ICE chart but there is no info that I see that indicates that the kPa needs to be divided by 100.

[Isita Tripathi 2E]

Kp is calculated using the unit "bar", so you have to convert kPa to bar.
100 kPa = 1 bar, so you have to divide each one by 100.

[Sean Monji 2B]

I saw this too and thought it might be a typo (since kPa = 1000 Pa, so convert to Pa). Since pascals are the SI unit for pressure (newtons per square meter), I wonder why they changed it to bar instead of the base pascal? (the answers will be different since the unit changes don't cancel out).