(a)[2]
Explain, in terms of molecules, why heating causes a liquid to expand.
(b)[2]
Explain, in terms of molecules, why heating makes a liquid expand more than a solid.
(c(i))[2]
Explain how the sensitivity of the second thermometer compares with that of the thermometer in Fig. 5.1.
(c(ii))[1]
Explain how the range of the second thermometer compares with that of the thermometer in Fig. 5.1.
(d(i))[1]
State one everyday problem that results from thermal expansion.
(d(ii))[2]
Suggest and explain one method of solving this problem.