Question

There are four fuels which all contain only carbon and hydrogen. The fuel having highest calorific value will be one which has:
(a) more of carbon but less of hydrgogn (b) less of carbon but more of hydrogen
(c) equal proportions of carbon and hydrogen (d) less of carbon as well as less of hydrogen

Answer 1

The calorific value generally increases as the proportion of hydrogen to carbon atoms increases due to a higher calorific value of hydrogen than carbon. So, option (b) is correct.