Heating Curve: How is the kJ calculated?

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Chew 2H
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Joined: Fri Sep 29, 2017 7:05 am

Heating Curve: How is the kJ calculated?

Postby Chew 2H » Wed Jan 10, 2018 5:25 pm

In the Heating Curve shown in lecture today, how do we know kJ/mol values of each solid/liquid/gas phases depending on the temperatures? Will it always be given?

Daniisaacson2F
Posts: 30
Joined: Sat Jul 22, 2017 3:00 am

Re: Heating Curve: How is the kJ calculated?

Postby Daniisaacson2F » Wed Jan 10, 2018 5:27 pm

Sometimes you have to convert the units given to you in order to do the calculation correctly. For example, the specific heat capacity and the heat of fusion have different units, so in order to get both of them to kJ, you have to cancel out the units in each equation to be converted to kJ.

Riya Pathare 2E
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Re: Heating Curve: How is the kJ calculated?

Postby Riya Pathare 2E » Thu Jan 11, 2018 11:25 am

Also the kJ/mol represent the amount of energy for one mole of that compound so if you had to calculate the enthalpy of of a compound that had more than one mole of it in the chemical equation we would have to multiply the number of moles with the kJ/mol value to get the total enthalpy for that compound in the equation.


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