2.00 g solid iodine, initially at 300 K, is heated in a sealed vessel maintained at 1.00 atm pressur — Thermodynamics Chemistry Question

2.00 g solid iodine, initially at 300 K, is heated in a sealed vessel maintained at 1.00 atm pressure. The temperature of the sample as a function of the amount of heat added to it is shown below.

What is the entropy of vaporization of I₂, ∆S°vap, at its normal boiling point?