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Answer :
Final answer:
The exact kilojoules of heat released in a reaction can be determined by knowing the enthalpy change of the reaction and the number of moles of the substance used. However, without this information for the CH4(g) to CH3OH(g) reaction, the heat released cannot be calculated.
Explanation:
To calculate the kilojoules of heat released when 38.2 g of CH4(g) reacts completely with O2(g) to form CH3OH(g) at constant pressure, we need to know the enthalpy change of the reaction, which represents the amount of heat released or absorbed in a chemical reaction. This value is typically given in kJ/mol, which stands for kilojoules per mole of substance involved in the reaction. However, since we don't have the enthalpy change for the reaction specified in the question, we cannot calculate the exact heat released.
For instance, if we know that the enthalpy change (ΔH) for a reaction was -92.307 kJ/mol, as is the case for the formation of HCl(g), we can use this information to calculate the heat released. When multiplying the enthalpy by the number of moles (found by dividing the mass of the substance by its molar mass), we would find the total heat released.
I would recommend looking up or asking for the enthalpy of the reaction between CH4(g) and O2(g) to form CH3OH(g) in order to solve this problem.
Learn more about Enthalpy Change here:
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