Calculate the heat of reaction for T=25C using the heat of formation method for each of the following unbalancedreactions. Be sure to include appropriate units. Reference Topic 7.2 in zyBooks for clarification. A. _N2 + _H2 -> _NH3 B. _CH4 + _O2 -> _CO2 + _H2O C. _C2H3OH + _CH3CH2OH -> _C4H8O2 + _H2O Does a negative value of heat of reaction indicate an exothermic or endothermic process? Under this sign convention, is energy leaving the bonds positive or negative?

Now we will compare these values to measured values reported online. Locate a measured value for the heat of reaction for each of the reactions above. Is it the same value? If not, why are the values different?

Write an energy balance equation which includes the overall heat of reaction rather than the heat of formation for each species. How will you account for an incomplete reaction? Do we still need the heat capacity integrals?

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