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Endothermic

Describes a chemical reaction that absorbs energy (usually in the form of heat).


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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...

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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: 3887

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

... 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= -182 Therefore, the reaction ...

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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: 3887

Cellular Respiration

... advice on the chemical equation for the breakdown of ATP. Does the reaction release energy (exergonic/exothermic) or absorb energy (endergonic/endothermic)? Much Appreciated

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by madeleineamber
Fri Sep 14, 2012 2:46 pm
 
Forum: Cell Biology
Topic: Cellular Respiration
Replies: 1
Views: 2638

Please help with my work

... they are hydrophobic) 3. a high heat capacity; doesn't change much; b on the microscale the water may buffer changes in temperature due to exo-/endothermic reactions 4. a as long as we are not talking about some aminosugars, it's true b definitely not true! Why? That's like saying Car does not ...

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by JackBean
Wed Jul 25, 2012 6:30 am
 
Forum: General Discussion
Topic: Please help with my work
Replies: 6
Views: 9168

How ATP works

... 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 in powering proteins, like myosin or protein ...

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by ACyanNight
Sat Jan 15, 2011 8:44 pm
 
Forum: Molecular Biology
Topic: How ATP works
Replies: 5
Views: 5883
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