The melting point of a substance X X\,X is 150 K and its boiling point is 350 K. Which row in the table correctly describes the physical state of substance X X\,X at the temperatures shown?
| 100 K | 200 K | 300 K | 400 K | |
|---|---|---|---|---|
| Row A | solid | solid | liquid | gas |
| Row B | solid | liquid | liquid | gas |
| Row C | liquid | liquid | gas | gas |
| Row D | solid | liquid | gas | gas |
Row A
Row B
Row C
Row D
321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.