Engine 2014: Steam Plants

1. A more heat is liberated by the production of CO2 than CO
2. B less excess air is required to produce CO2 than CO
3. C efficient combustion is indicated even though the heat liberated is less than the heat produced by burning to CO
4. D efficient combustion is indicated and the heat liberated is equal to the heat produced by the formation of CO

Tip: press A-D to answer