(a)[1]
Name one fuel that exists as a solid at room temperature.
(b)[1]
Deduce which of J, K, L or M gives out the greatest energy per gram.
(c)[1]
Name the type of chemical reaction that releases heat energy.
(d)[2]
Name the two products formed when a hydrocarbon fuel undergoes complete combustion.
(e(i))[1]
Choose from the list the radioactive isotope used as a source of energy. Draw a circle around your answer.
(e(ii))[1]
State one further industrial use of radioactive isotopes.