The PR team says that most of the molecules on the engineering list do not have

Question

The PR team says that most of the molecules on the engineering list do not have nutritional information. You explain that there are several ways to determine the change in enthalpy of a reaction process. One way is to determine the enthalpy of reaction from the standard enthalpies of formation, Delta H_f^0. For each of the following substances, find the equation for the heat of formation from their respective elements (in the standard state). The synthetic human is being designed to go into outer space and there are

Explanation / Answer

a) H2 + O2 --------> 2H2O

b) H3O+ + OH- ---------> 2H2O

c) C + O2 --------> CO2

d) Na+ + Cl- ------> NaCl

I have a doubt with e) and f).

Hope this helps

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