A cool liquid and a hot gas are at the same pressure. Which option correctly describes the separation and the motion of the particles of the cool liquid compared to those of the hot gas?
Separation is greater than a hot gas, and motion is faster than a hot gas.
Separation is greater than a hot gas, and motion is slower than a hot gas.
Separation is less than a hot gas, and motion is faster than a hot gas.
Separation is less than a hot gas, and motion is slower than a hot gas.
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.