chemistry question

Question

Using the standard enthalpies of formation, what is the standard enthalpy of reaction?

ΔH∘rxn = _____kJ

Answer 1

Find a table of standard enthalpy and plug in the values in the following formula...

∆Hrxn = [∆H_fCO₂(g) + ∆H_fH₂(g)] - [∆H_fCO(g) + ∆H_fH₂O(g)]

NOTES:

The ∆H in the above formula should be ∆Hº (too lazy to put the superscript in)

The ∆Hf for H₂(g) will be zero

Pay attention to the states. The ∆H₂O(g) is not the same as ∆HH₂O(l) for example

The formula is ∑products - ∑reactants