Fig. 3.1 depicts a small block of ice floating in a beaker containing warm water. The labels on the diagram are: block of ice, warm water.
(a)[1]
State one difference between the motion of the particles in ice and the motion of the particles in water.
(b(i))[1]
State the name of the thermal process that carries energy from the water to the ice.
(b(ii))[2]
Calculate the energy lost by this water as its temperature falls from $28\text{ ^{\circ}C}$ to $10\text{ ^{\circ}C}$.
(b(iii))[3]
Explain how convection makes the temperature of all the water in the beaker decrease.
(b(iv))[2]
State how the internal energy of the water changes as its temperature decreases. Describe the change in terms of particle energy.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Particles in ice oscillate about fixed positions OR particles in water move freely through the liquid” …