<p>10bio10 it seems we are missing the same problems want to get on our own chat to help each other out</p>
<p>Does anyone know hot to tell how increasing temperature will effect whether equilibrium shifts forward or not if it isn’t stated whether reaction is endo/exothermic?</p>
<p>just remember one trend : if you increase the temp for an exo then the reactants will be favored and the k will go down</p>
<p>just memorizing this one will help u know the rest of inc or dec temp for exo or endo</p>
<p>does anyone have a good resource for pes?</p>
<p>I know but what if they don’t give you the delta H or state that it is endo/exo, how would you determine it without this knowledge</p>
<p>@ChemCramyea they should tell you can u explain the problem BTW very apt name</p>
<p>N2(g) + 3H2(g) ↔ 2NH3(g) something like this then it asks, which of the following would cause a shift towards the reactants</p>
<p>Apparently, ‘cooling the reaction’ would shift it forward, but I’m confused as to how I am supposed to come to that conclusion</p>
<p>Does anyone have summaries for the labs? </p>
<p>what are the answer choices</p>
<p>@PersianPwr Sure!</p>
<p>The only way I can see it is that ‘bond making’ is exothermic and since they are forming a bond, I should realize it’s an exothermic process?</p>
<p>The answer is just increasing the size of container which makes sense because the volume is increasing so it shifts towards the side w/ more molecules, I was just wondering if a similar question could be asked that involves how temperature would effect it</p>
<p>Does anyone know if the Barron’s Practice Exams are harder than actual AP test questions? It seems like it isn’t because it has some easy questions (“Find the conjugate acid-base pair”) and all tests are practically the same.
Anyway, I got a 43/60 on the multiple choice section and an 18/46 on the FRQ’s (absorptivity is terrible); the scoring guideline they had says I got a 4. Is it possible for me to get a 5? And are the AP practice test questions as difficult as Barron’s?</p>
<p>How helpful is the AP Chemistry Crash Course book?</p>
<p>@cramthyme it is VERY helpful</p>
<p>@biopenguin I think the barron’s frq are much much harder</p>
<p>Crash course is good for last minute cramming, it just reintroduces concepts, it is more effective as a review thing rather than teaching you the stuff for the first time</p>
<p>@10bio10 At this point, would it be more beneficial for me to practice past FRQs (even though they might completely change it up this year) or just skim through the crash course book to review all the concepts?</p>
<p>Also, does anyone know if the nernst equation is on this? We didn’t finish the curriculum and i basically just learned half of the curriculum in a day</p>