Methane is the major component of natural gas. The standard molar enthalpy of formation of methane CH4 is -74.9 kJ/mol. For the balanced reaction equation of methane use: CH4 + 2O2 --> CO2 + 2H2O.

All the chemicals in this reaction are gases. What is the enthalpy change of this reaction in kJ/mol?

Explanation:

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In this case, according to the given chemical reaction, it is possible to calculate the enthalpy change of the reaction via:

Since the enthalpy of formation of oxygen is 0. Thus, given the enthalpies of formation of gaseous carbon dioxide and water, we obtain:

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explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

lithosphere and asthenosphere