7.0 Lykiljöfnur

Lykiljöfnur

Tengjaorka fyrir tvíatóma sameind:

{\text{XY}{(g)}\, \longrightarrow \, \text{X}{(g)}+\text{Y}{(g)}\, {\text{D}}_{{\text{X–Y}}}=\text{Δ}H\text{°}}

Vermibreyting: ΔH = ĉD_{rofin efnatengi} – ĉD_{mynduð efnatengi}

Grindarorka fyrir fast efni MX:

{\text{MX}{(s)}\, \longrightarrow \, {\text{M}}^{{n\text{+}}}(g)+{\text{X}}^{{n\text{−}}}(g)\, \text{Δ}{H}_{{\text{lattice}}}}

Grindarorka fyrir jónakristal:

{\text{Δ}{H}_{{\text{lattice}}}=\, \frac{{\text{C}{({{\text{Z}}^{\text{+}}})}{({{\text{Z}}^{\text{−}}})}}}{{{\text{R}}_{\text{o}}}}}