Write any four characteristics of an ideal fuel.
(a) What are fuels ? Name any two common fuels.
(b) State any four characteristics of an ideal fuel (or good fuel).
(a) What is a fuel? Give five examples of fuels. (b) What are the characteristics of an ideal fuel (or good fuel) ? (c) The calorific value and ignition temperature of fuel A re 55 kj/g and 80∘C, respectively. These values for fuel B are 80 kj/g and 10∘C, respectively. On burning, the fuel A produces CO2 and H2O while the fuel B produces CO2, CO and SO2. Give three points of relative advantages and disadvantages of these two fuels.
(a) Explain the structure of candle flame. Also, draw its diagram.
(b) What is calorific value?
(c) What are the characteristics of a good fuel?