Chemistry · Oct / Nov 2024 · Paper 12 · Question 17

Gas P decomposes to form gas Q. xP → yQ Two experiments are done to investigate the rate of reaction. The conditions are the same except that two different temperatures, T1 and T2, are used. The results are plotted on graphs, drawn to the same scale. [graphs showing volume of Q increasing and volume of P decreasing over time for T1 and T2] Which row is correct?

1. Ax = 2, y = 3, T1 is higher than T2
2. Bx = 2, y = 3, T2 is higher than T1
3. Cx = 3, y = 2, T1 is higher than T2
4. Dx = 3, y = 2, T2 is higher than T1

As printed in the paper