Asked by Dominique
Label each of the following as endothermic or exothermic
A.) Products are more stable than reactants
B.) Kinetic energy is converted into potential energy
C.) Evaporation
D.) Combustion
E.) Water freezes
F.) Heat seems to disappear
A.) Products are more stable than reactants
B.) Kinetic energy is converted into potential energy
C.) Evaporation
D.) Combustion
E.) Water freezes
F.) Heat seems to disappear
Answers
Answered by
DrBob222
And you think what? and why?
Answered by
Dominique
Well, I think that A is exothermic because I know for a fact that in an exothermic chart the products are always lower in P.E than the reactants. I'm really not sure about all of the other questions though.
Answered by
DrBob222
I think you're right about A.
Wouldn't you need to work to make KE into PE?
C. To evaporate H2O you must add heat so that must be endo.
D. If you burn a piece of wood that is combustion. It gets hot, right? So that must be?
E. When water freezes it is exothermic. No, I didn't make a typo.
ice + heat ==> liquid H2O which is endothermic, right? So the reverse of that must be exothermic.
F.I don't know how to interpret F.
Wouldn't you need to work to make KE into PE?
C. To evaporate H2O you must add heat so that must be endo.
D. If you burn a piece of wood that is combustion. It gets hot, right? So that must be?
E. When water freezes it is exothermic. No, I didn't make a typo.
ice + heat ==> liquid H2O which is endothermic, right? So the reverse of that must be exothermic.
F.I don't know how to interpret F.
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