Complete the following sentences about the kinetic model of matter.
(i) In a gas, the motion of the particles is rapid and ___________.
(ii) Compared to a solid, the attractive forces between the particles in a gas are extremely ___________.
(iii) A gas exerts a pressure on the container walls because the moving gas particles ___________ with the walls.
(iv) If the temperature of a gas in a sealed container of fixed volume increases, the pressure exerted by the gas ___________.
(i) State the temperature, in kelvin (K\text{K}K), of the lowest possible temperature (absolute zero).
(ii) State this lowest possible temperature in degrees Celsius (∘C^{\circ}\text{C}∘C).
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.