The following diagram represents the collection of co2 and h2o molecules formed by complete combustion of a hydrocarbon. (figure 1)

what is the empirical formula of the hydrocarbon?
express your answer as a chemical formula.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.