if 5g of NH4NO3 on dissolution in water cooled its surrounding water and container by 1.6kj.What is the heat of solution?
Taataaji
10 Dec, 2024
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Aliyuus2
1 year ago
Molarmass of NH4NO3=80g/mol
no of moles =mass /molarmass =5/80=0.0625mol
heat of soln=heat evolved/no. Of mole
=1.6/0.0625=-25.6kj/mol i.e the negative sign means it is an exothermic rxn
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