Chemistry 7404: Physical chemistry Topical Past Paper Questions
AQA AS Chemistry (7404) past-paper questions on Physical chemistry, free. This topic is frequently examined across 9 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A sample of cyclohexane contains $ 3.011 \times 10^{24} $ atoms of carbon. What is the mass of this sample? The Avogadro constant, $ L = 6.022 \times 10^{23} \, \text{mol}^{-1} $ [1 mark] A 70.0 g B 71.7 g C 420 g D 430 g
What is the atom economy for the formation of ethylamine in this reaction? $ \begin{array}{c} \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Br} + 2 \mathrm{NH}_{3} \rightarrow \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{NH}_{2}+\mathrm{NH}_{4} \mathrm{Br} \\ \hline [1 \mathrm{~m a r k}] \e…
Which change in condition will decrease the equilibrium yield of methanol? [1 mark] A Increase the amount of CO in the equilibrium mixture. B Increase the pressure. C Increase the surface area of the catalyst. D Increase the temperature.
Sign in required
Full Physical chemistry question set, mark schemes and AI worksheets
Log in for the full topic-segregated question set, mark schemes, and AI worksheets built from every Chemistry past paper. New accounts start with 25 free credits.
Explore all Chemistry topics
All Chemistry topics