Heating Curve

Moderators: Chem_Mod, Chem_Admin

TanveerDhaliwal3G
Posts: 105
Joined: Fri Aug 30, 2019 12:17 am

Heating Curve

Postby TanveerDhaliwal3G » Sun Feb 02, 2020 10:26 pm

How do you read and interpret a heating curve?

gconcha
Posts: 37
Joined: Fri Aug 09, 2019 12:16 am
Location: Sunset Village
Contact:

Re: Heating Curve

Postby gconcha » Sun Feb 02, 2020 10:31 pm

The areas on the graph where the lines seem to go flat are areas in which the heat being added to the substance only serves to contribute to the substance's phase change as opposed to increasing the temperature of the substance, whereas areas where the function increases are indicative of temperature increasing relative to the heat added

Eileen Si 1G
Posts: 120
Joined: Fri Aug 30, 2019 12:17 am

Re: Heating Curve

Postby Eileen Si 1G » Mon Feb 03, 2020 10:32 pm

Adding onto what the person before me said, the steeper the heating curve, the lower the heat capacity, and vice versa - the shallower the heating curve, the higher the heat capacity.

Kishan Shah 2G
Posts: 132
Joined: Thu Jul 11, 2019 12:15 am

Re: Heating Curve

Postby Kishan Shah 2G » Mon Feb 03, 2020 10:36 pm

The flat lines on a heating curve represent the deltaH(fusion) or the deltaH(vaporization) depending on where the horizontal line is. The increasing diagonal lines are representing the q=mcAT as we are heating the substance with a certain heat capacity.

Joanne Lee 1J
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: Heating Curve

Postby Joanne Lee 1J » Tue Feb 04, 2020 10:50 pm

The slopes of the curves are the period of times where it is in its specific phase but the flat area of the graph is when the substance is changing from one phase to the next.

Rida Ismail 2E
Posts: 139
Joined: Sat Sep 07, 2019 12:16 am

Re: Heating Curve

Postby Rida Ismail 2E » Tue Feb 04, 2020 11:01 pm

The plateaus are places of phase change while the positive slope areas is where temperature is increasingly the system.

Jesse Anderson-Ramirez 3I
Posts: 54
Joined: Thu Sep 26, 2019 12:18 am

Re: Heating Curve

Postby Jesse Anderson-Ramirez 3I » Wed Feb 05, 2020 10:36 am

flat areas of the graph are where phase changes are occurring. At these instances temperature is constant because all energy is being used to change phases.


Return to “Phase Changes & Related Calculations”

Who is online

Users browsing this forum: No registered users and 4 guests