Nov 07 2021 12 mins 2
The FRQs discussed in this episode are the question 4s from the 2019, 2018 and 2017 AP Exam. These are released FRQs from previous exams and copyright of the College Board (0:23).
Question 4 of the 2018 exam focuses on comparing the IMFs of CS2 and COS, asking you to explain why CS2 has a higher boiling point (1:48). The second part has you calculate the pressure of CS2 using the ideal gas law (3:11). In question 4 of the 2019 exam you describe the effect of raising the temperature on the motion of the CO2 particles connecting temperature and particle speed (4:09). In part b you calculate the new pressure under constant volume (4:59), in part c) you describe why the pressure increases (6:35) and in part d you compare an ideal and a real gas (7:19). Question 4 of the 2017 exam focuses in Chromatography, identifying the least polar dye by discussing the interactions between dye and solvent/paper (8:29) as well as identifying an unknown by comparing how far the dye travelled (9:05).
Today’s Question of the day is about FRQ Questions.
True or false: The term “van-der-Waals” forces can be used instead of London Dispersion Forces.
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