Latent heat of Solution?

[PugwasHDJ80]

when you dissolve sugar in tea, does the temperature of the solute drop due to dissolution?

if not, why not?

[BarnatosGhost]

PugwasHDJ80 said:

when you dissolve sugar in tea, does the temperature of the solute drop due to dissolution?

if not, why not?

What temperature is the sugar when you put it in?

Assuming it is colder than the tea, then yes, once dissolved it will reduce the overall temperature of the tea, the overall temperature of the whole being an weighted aggregate of the separate two temperatures of the original materials.

[Williams99]

I seem to remember being told that the act of breaking the bonds in the sugar releases energy as it is exothermic?

Actually, that's salt isn't it. Balls.

Nevermind, as you where.

[PugwasHDJ80]

BarnatosGhost said:

What temperature is the sugar when you put it in?

Assuming it is colder than the tea, then yes, once dissolved it will reduce the overall temperature of the tea, the overall temperature of the whole being an weighted aggregate of the separate two temperatures of the original materials.

sorry should be clear- assuming both solute and solvent are the same temperature when the salt/sugar/a.n.other actually dissolves, does the action of dissolution release, or require energy.

not interested in putting water on things like slaked lime- purely on the acction of dissolving stuff.

[Simpo Two]

Williams99 said:

I seem to remember being told that the act of breaking the bonds in the sugar releases energy as it is exothermic?

Actually, that's salt isn't it. Balls.

Dissolving isn't to do with breaking (molecular) bonds - your salt does not become sodium metal and chlorine gas!

[Williams99]

Simpo Two said:

Dissolving isn't to do with breaking (molecular) bonds - your salt does not become sodium metal and chlorine gas!

It's the act of breaking the ionic bonds isn't it? So you end up with a sodium negative ion and a chlorine positive ion. Doubting myself now!

[Simpo Two]

Ionic bonds - yes, forgot those - you may be right!

[Nimby]

Williams99 said:

It's the act of breaking the ionic bonds isn't it? So you end up with a sodium negative ion and a chlorine positive ion. Doubting myself now!

Other way round - Na+ and Cl-

[Devil2575]

Heat of solution for sugar in water is endothermic i.e. takes heat, so the solution will cool down.