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Ch.19 - Free Energy & Thermodynamics

Chapter 19, Problem 28

Which of these processes are nonspontaneous? Are the nonspontaneous processes impossible? a. a bike going up a hill b. a meteor falling to Earth c. obtaining hydrogen gas from liquid water d. a ball rolling down a hill

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Hello, everyone in this video, we're going to look at four different processes and seeing if they're going to be not non spontaneous or non spontaneous. And the first statement reads water falling from waterfalls. Well, when you think of a waterfall, water will naturally fall from it there for learning waterfall and because of this, it's a very natural occurrence and it's going to be not non spontaneous. Alright, for my next statement, it's reading, riding a skateboard uphill. If you think about it, the rider of the skateboard needs to use force in order to go uphill because of that force that's required is going to be non spontaneous. Alright then we have our third statement reading, boiling of water. We know that water requires heat energy to heat that water up to whatever temperature that it boils to. And because of that, this is going to be a non spontaneous occurrence, because it requires heat energy. So it requires some sort of manipulating. And final statement that we have is turning graphite into diamond. While this requires extreme heat and pressure to turn that graphite into diamond because of that manipulation of heat and pressure, this is going to be a non spontaneous occurrence. Alright, and these are going to be my final answer for each statement here. Thank you all so much for watching