Chemistry · May / June 2024 · Paper 11 · Question 1

A scientist heats a sample of a liquid. The scientist measures the temperature of the sample and plots a graph of the temperature against time. [graph: temperature / °C against time / s, with points W, X, Y, Z] Which statements are correct? 1 Between points W and X, the temperature increases and the particles move faster. 2 Between points X and Y, there is no change in the temperature because energy is needed to change a liquid into a gas. 3 Between points Y and Z, the particles move further apart.

1. A1, 2 and 3
2. B1 and 2 only
3. C1 and 3 only
4. D2 only

As printed in the paper