Dictionary » E » Exothermic

Exothermic

Exothermic

describes a chemical reaction that releases energy (usually in the form of heat).


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Re: How do i know if a reaction is endothermic or exothermic?

Change in enthalpy = sum of bond energies of reactants - sum of energies of products = Total input energy – Total output energy From: Enthalpy Changes in Chemical Reactions http://faculty.ncc.edu/LinkClick.aspx?fileticket=L2sV5SDzIhE%3D&tabid=1871 This reverses the sign of the enthalpy. Enthalpy...

See entire post
by jonmoulton
Mon Nov 04, 2013 4:07 pm
 
Forum: General Discussion
Topic: How do i know if a reaction is endothermic or exothermic?
Replies: 1
Views: 3460

How do i know if a reaction is endothermic or exothermic?

Consider the Reaction: 2Hg) (s) --> 2Hg (l) + O2 (g) Bond: Hg=O 340kJ/mol O=O 498 kJ/mol How do i solve this? My answer was exothermic but it was wrong. It should be endothermic. This is how i solved it: Enthalpy Before: 2(340) = 680 Enthalpy After: 498 Change in Enthalpy: 498 - 680= ...

See entire post
by VxW
Sun Nov 03, 2013 6:39 pm
 
Forum: General Discussion
Topic: How do i know if a reaction is endothermic or exothermic?
Replies: 1
Views: 3460

Cellular Respiration

... my strongest point could someone lend some advice on the chemical equation for the breakdown of ATP. Does the reaction release energy (exergonic/exothermic) or absorb energy (endergonic/endothermic)? Much Appreciated

See entire post
by madeleineamber
Fri Sep 14, 2012 2:46 pm
 
Forum: Cell Biology
Topic: Cellular Respiration
Replies: 1
Views: 2567

Theories - Origin of Life

... structure would require the presence of special membrane rhizoids, which would look in the substrate compounds containing hydrogen - for exothermic synthesis of water! Energy would be allocated, by the way, can also be used for CO2 - C + O2!

See entire post
by LeoPol
Tue Oct 04, 2011 9:35 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 906953

How ATP works

... I can't seem to find the answer on my own. All of the books I've read say that ATP provides the energy to power the cell. I can grasp that as an exothermic reaction, it can be coupled with endothermic reactions to make it exothermic overall, however, I'm not sure how this would apply to its use ...

See entire post
by ACyanNight
Sat Jan 15, 2011 8:44 pm
 
Forum: Molecular Biology
Topic: How ATP works
Replies: 5
Views: 5786
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 12,709 times. 
What links here | Related changes | Permanent link