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Ch.14 - Solutions

Chapter 14, Problem 36d

When lithium iodide (LiI) is dissolved in water, the solution becomes hotter. d. Why does the solution form? What drives the process?

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Hello everyone on this problem being to let the solution becomes hotter when sodium bromide to N. A P. R. Is dissolved in water. What causes this solution to form was the driving force of this process. So it considered the entropy of the solution and the entropy of the solution. So for entropy the solution becomes hotter after the solution of the N. A. P. R. So we can say that the solution is harder after the N A B. R. Because heat is being released, which means that we have an exhaust thermic process going on. This means that the delta age of our solution here is going to be less than zero. So we have a negative value we can get from that is that we have a dissolved state. That is more favored because of the lower energy than the undeserved state. Alright, as for the entropy of the solution, saw you. The solution typically increases entropy by spreading these molecules and the thermal energy they contain across a larger volume of solvent. But let's recall let's also recall that increase an entropy drives the dissolution of the solid and the solvent forward, which means that we favor dissolved state. Alright, so our final answer this question then, let's go ahead write this out. Is that the solution for us? Because the dissolved state has a lower energy than the undeserved ST. The increase an entropy is the driving force of the process. So this right here is going to be my final answer for this problem. Thank you all so much for watching