Asked by Anonymous
Could anyone name the enthalpy change by name AND if it is exothermic or endothermic (why it is endo or exo)
1 mol C(3)H(8)(l) to 1 mol C(3)H(8)(g)
Answers
Answered by
DrBob222
Changing a material from a liquid to a gas is delta H vaporization or heat of vaporization. It is endothermic. Why endothermic? One must ADD energy to energize the molecules enough to overcome their attractive forces for each other and break away into the vapor form.
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