When a solute spontaneously dissolves in a liquid, the process is often exothermic. NH,NO3, however, spontaneously dissolves in water endothermically and is thus used in cold packs. Which is TRUE about the dissolution of NHẠNO3? Select one: O a. The AH of the process is zero. O b. The increase in entropy during dissolution outweighs the positive change in enthalpy. The AS of the process is negative. O d. The AG of the process is positive.

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.