exothermic vs endothermic [ENDORSED]
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 59
- Joined: Fri Sep 29, 2017 7:06 am
exothermic vs endothermic
For calorimeter problems, is the water, the calorimeter, or the air (outside of the calorimeter) the surroundings?
-
- Posts: 51
- Joined: Fri Sep 29, 2017 7:06 am
Re: exothermic vs endothermic
The water is considered the surroundings because that is where the system is happening inside.
-
- Posts: 51
- Joined: Fri Sep 29, 2017 7:03 am
Re: exothermic vs endothermic
calorimeters are always isolated systems as well because they cannot exchange matter or energy with its surroundings
-
- Posts: 61
- Joined: Fri Sep 29, 2017 7:04 am
Re: exothermic vs endothermic
Calorimeters are not isolated systems. Bomb calorimeters are able to exchange heat with the surroundings, therefore classifying them as closed systems.
-
- Posts: 52
- Joined: Fri Sep 29, 2017 7:07 am
- Been upvoted: 1 time
Re: exothermic vs endothermic
The calorimeter can also be apart of the surroundings, as some calorimeters absorb some of the heat released in the reaction. In general though, the water is the surrounding and whatever you're adding is the system.
-
- Posts: 67
- Joined: Fri Sep 29, 2017 7:05 am
-
- Posts: 53
- Joined: Thu Jul 13, 2017 3:00 am
Re: exothermic vs endothermic
It depends on the context of the problem but water is considered the surroundings if something is placed in the water. However, the amount of energy absorbed by a calorimeter can be used to calculate heat released to the surroundings as well.
-
- Posts: 53
- Joined: Sat Jul 22, 2017 3:00 am
Re: exothermic vs endothermic [ENDORSED]
In most part problems, the water is usually seen as the surrounding but it's like the person above said, it all depends on what the question is describing
Return to “Heat Capacities, Calorimeters & Calorimetry Calculations”
Who is online
Users browsing this forum: No registered users and 12 guests