Question

6kg of coal (carbon) is burned in air. What mass of carbon dioxide will be produced? (Assume that combustion is complete and ignore the effect of any impurities.)

Answer 1

COMBUSTION REACTION -

• The burning of a substance in the presence of air is known as a combustion reaction.
• The Burning of coal in the air produces carbon dioxide as C + O → $CO_2$
• According to the chemical equation, 12g of coal burns in 32g of oxygen to produce 44g of carbon dioxide.
• By stoichiometry, 6kg of carbon will produce 22kg of carbon dioxide.

                                               C + O → $CO_2$