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Problem 28

Which of these processes are nonspontaneous? Are …

Problem 27

Which of these processes is spontaneous?
\begin{equation}\begin{array}{l}{\text { a. the combustion of natural gas }} \\ {\text { b. the extraction of iron metal from iron ore }} \\ {\text { c. a hot drink cooling to room temperature }} \\ {\text { d. drawing heat energy from the ocean's surface to power a ship }}\end{array}\end{equation}


Choices A and C are spontaneous processes.



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Video Transcript

Okay, so for this question were to us which of these falling processes spontaneous a conduction off natural guests. All the conduction reaction are spontaneous. So a is gonna be our answers. And we're gonna keep reading the instruction off Iron medal for lying. Or this one need a chemical reaction or chemical processes Can't be spontaneous. See, hot drink cools to the room temperature. This'd is gonna be spontaneous because temperatures by heat is always traveling from the heart to code. So this is gonna be also our answers. Spontaneous drawing heat energy from the ocean surface to power ship. This is not a spontaneous because we are specifically harnessing the energy of heat. This can't be also true. So the only answers is a and see for this case.

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