"Because heat is required during the melting or boiling (phase transition), temperature of sample remains constant even though heat is being supplied"
**Thought this was pretty cool and the first time I heard about this.**
EDIT: Just watched further in lecture and see he used the same graph, oh well.
Temperature through Phase Changes
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 101
- Joined: Wed Sep 30, 2020 9:35 pm
-
- Posts: 99
- Joined: Wed Sep 30, 2020 10:09 pm
Re: Temperature through Phase Changes
I was wondering what exactly deltaQ is representing in this graph. I understand it is heat supplied but what does this variable verbally represent? Is it just change in heat energy?
-
- Posts: 102
- Joined: Wed Sep 30, 2020 9:47 pm
- Been upvoted: 3 times
Re: Temperature through Phase Changes
Frankie Mele 3J wrote:I was wondering what exactly deltaQ is representing in this graph. I understand it is heat supplied but what does this variable verbally represent? Is it just change in heat energy?
I believe Q is just the symbol used for heat. So yes, deltaQ would mean change in heat.
-
- Posts: 95
- Joined: Fri Oct 02, 2020 12:17 am
- Been upvoted: 1 time
Re: Temperature through Phase Changes
Yes! It was briefly mentioned in lecture that deltaQ or qp is equal to the change in heat, deltaH, or enthalpy - the amount of heat absorbed or released in a reaction.
-
- Posts: 101
- Joined: Wed Sep 30, 2020 9:42 pm
- Been upvoted: 3 times
Re: Temperature through Phase Changes
Frankie Mele 3J wrote:I was wondering what exactly deltaQ is representing in this graph. I understand it is heat supplied but what does this variable verbally represent? Is it just change in heat energy?
DeltaQ is the equivalent to enthalpy as I'm pretty sure this is the same type of graph that Dr. Lavelle used in his lecture.
Return to “Phase Changes & Related Calculations”
Who is online
Users browsing this forum: No registered users and 1 guest