Official AP Chemistry Thread (2014-2015)

Can someone explain me the graph of 17 on 2014?

I also missed 3 of the first 25 on 2014 so chill.

You’re asking the same questions over and over. They have been answered already. (And directed toward you)

Am I the only one here not shooting for a 5

If you increase temperature then K decreases. can someone explain this? It relates to exothermic reactions.

@SoSophistic Exothermic reactions release heat. If you increase the temperature, it’s already hot, thus it’s less favorable to make it even hotter. Thus, the reaction shifts left, meaning lower K.

@SippinCoffee You should shoot for a 5. :smiley: Believe in yourself.

@SoSophistic exothermic:

A + B <–> C + D + heat

K=[prod]/[react]

Increasing temp will cause the equilibrium to shift to the reactants (Le Chat), producing more reactants, and therefore decreasing K (since products are in the denominator)

@SippinCoffee im shooting a 4 atleast but a 5 would be nice :smiley:

Nope lol, being here means you care enough to get a 5. Just do it. -Nike

Wow this pep talk is great guys thanks :smiley:

I think I’m going to bed. 10:30 here. This is a record for me lol

@apactstudent: Why exactly are you here then? We all know chemistry, we are just looking for a last refresher before the exam.

Lol. Someone said for 17 look at the graph I don’t understand the graph so I asked again.

@apactstudent I hope you mean an early record. My mean bedtime is shifting closer and closer to 1 AM lol.

@APScholar18 The x-axis says internuclear distance, arrange the particles based on internuclear distance, magic.

Could anyone explain how to do limiting reactants to me please? I’ve looked everywhere and I’m still stuck

oh nvm

I’m studying the learning objectives right now, I think they’re pretty useful.

@noobphobic You should search for it on youtube, it’s easier that way. ChemistNate is one of my favorite chemistry youtubers