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Specific Heat Capacity vs. deltaHfus and deltaHvap

Posted: Tue Mar 13, 2018 10:42 am
by LMendoza 2I
What's the difference between the specific heat capacity and deltaHfus/vap?

Re: Specific Heat Capacity vs. deltaHfus and deltaHvap

Posted: Tue Mar 13, 2018 11:10 am
by Deap Bhandal L1 S1J
The specific heat capacity is the amount of energy it takes to raise a certain unit of mass a certain unit of temperature. Usually this unit of mass is grams and the unit of temperature is Celsius or Kelvin. For example 1 calorie is the amount of energy it takes to raise the temperature by one degree Kelvin/Celsius of one gram of water. Delta H fusion is the amount of energy it takes for a substance to change from solid to liquid. Delta H vaporization is the amount of energy it takes for a substance to change from liquid to gaseous. Delta H sublimation is the amount of energy it takes for a substance to change from its solid phase to its gaseous phases. These last three values do not take amount into account, so in their units they have energy/moles: multiplying by the moles gives the value for a certain quantity of that substance.

Re: Specific Heat Capacity vs. deltaHfus and deltaHvap

Posted: Tue Mar 13, 2018 11:38 am
by Seth_Evasco1L
Adding onto the previous post, since those three terms don't depend on the amount of substance into account, they can be described as intensive properties.