A student dissolves [tex]14.0 \mathrm{~g}[/tex] of ithium chlocide ( LiCl) in 200 . g of woter in a well-inculated open cup. She then observes the temperature of the water rise from [tex]23.0^{\circ} \mathrm{C}[/tex] to [tex]38.4^{\circ} \mathrm{C}[/tex] over the course of [tex]8.4[/tex] minutes:
Use this date, and any information you need from the AuEks Dura resource, to answer the questions below about this reaction:
[tex]
\mathrm{LiCl}(s) \rightarrow \mathrm{Li}^*(a q)+\mathrm{Cl}^{-}(\alpha q)
[/tex]
you can make any reasonabie assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits.

Note for advanced stidents: it's poss ble the student did not do the experiment carefully, and the values you calculate may not bet the same as the known and published values for this reaction.


Is this reaction exothermic, endothermis, or neither?