Answer :
The calorimeter has the final temperature rise with the addition of calcium chloride as formation of bonds stronger than the bonds that are broken. Thus option B is correct.
There has been increased in the temperature as the breaking of bonds has released energy in the solution. With the high energy in the solution, the part of the energy has been used for the bond formation. However the rise results as the bonds formed are stronger than the bonds broken.
The calorimeter has the final temperature of [tex]\rm 52^\circ C[/tex]. The addition of calcium chloride results in a rise in temperature. This has resulted in the formation of bonds stronger than the bonds that are broken. Thus option B is correct.
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