Chemical cold packs used for sports injuries are made with solidammonium nitrate (NH4NO3) and a plastic bag of water. When the bagof water is broken the ammonium nitrate dissolves.
NH4NO3(s) --> NH4+ (aq) + NO3- (aq)
As the solution forms, the water and bag get colder.
Which of the following is true for this process. ( Assume thereaction above is our system) Chose all that apply
Select one or more:
a. The process is endothermic.
b. Δ H for the reaction is positive
c. q for the water is positive.
d. The process is exothermic.
e. The solid ammonium nitrate has more enthalpy (H) than theammonium and nitrate ions.
f. q for the water is negative.
g. The solid ammonium nitrate has less enthalpy (H) than theammonium and nitrate ions.
h. q for the reaction is negative.
i. q for the reaction is positive.
