Question

In: Chemistry

What is the difference between ΔH° rxn and ΔH° ? Define both quantities.

What is the difference between ΔH° rxn and ΔH° ? Define both quantities.

Solutions

Expert Solution

dHrxn = (sum of dH products) - (sum of dH reactants)

So delta H is enthalpy of each compound, not of a full reaction, each compound have its own specific enthalpy,

when a reaction take place and we balance it with all its stochiometry and then add the different delta H with multiplicatiion with their respective number, then we get sum of deltaH product as well as reactants.

As given above equation, delta H reaction is difference of sum of delta H product and delta H reactants.

Hence, delta H referes to enthalpy of each compound. whereas delta H reaction is total enthalpy of a reaction along with its balanced equation.

Answer. I hope this clears your doubt about delta H ....

queen_honey_blossom answered 2 years ago
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