Question

relationship between delta H and delta U for the reaction C+O2 gives CO2​

Answer 1

Answer:

We already know,

∆H = ∆U + ∆(PV)

So,

because for an ideal gas,

PV = nRT

∆H = ∆U + ∆(nRT)

∆H = ∆U + ∆n RT

Here for the reaction

C(s)+O2(g)----> CO2(g)

∆n = gaseous moles in products - gaseous moles in reactants.

So,

here,

∆n = 1-1 = 0

So

Relationship between the given quantities here would give us,

∆H = ∆U