Question

explain enthaply if sublimation and enthaply of phase transition
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Answer 1

Explanation:

Enthalpy can be represented as the standard enthalpy, ΔHo. This is the enthalpy of a substance at standard state. ... Standard Enthalpy of Sublimation (ΔHsubo) is the energy that must be supplied as heat at constant pressure per mole of molecules converted to vapor from a solid.

Answer 2

Explanation:

It is the enthalpy change which accompanies the conversion of 1 mole of a solid directly into vapour phase at a given temperature below its melting point.

I

2

(s)→I

2

(g),Δ

sub

H=62.39kJ/mol

Δ

sub

H=Δ

fus

H+Δ

vap

H