Stuck in the house during quarantine, wondering what the point of life is these days, I found myself looking through pictures I took during the year. A school year is a long time, but it still astonishes me that all those pictures I looked at occurred during this 9 month period of my life.
Of all these pictures, from parties and adventures, restaurants and parks, the one that gave me an idea to write about was a picture of a ChemCAD drawing showing a multi-stage distillation process. (ChemCAD is a software that models large-scale chemical processes.)
Distillation is a major topic of Separation Processes, which is in itself a major course in Chemical Engineering. This is becuase distillation is important, a widely used process that by itself is 6% of the U.S. power usage. While that is impressive, I think this image stood out to me as it does because Distillation, like most of the separation processes we covered in class, is based on the concept of equilibrium.
Equilibrium, I think, is a fairly intuitive concept. It’s where everything is balanced. Where, given something dynamic, there exists conditions that temper turmoil so that it is static. You can think of a stable relationship as one that has reached equilibrium, where you’ve gone through the ups and downs and have now found your groove. A balanced seesaw, or pencil, or scale, represents equilibrium of the forces at either end. In chemistry, two chemicals react because something about them being together is imbalanced, and they change to reach a point of stability. Our own bodies are often described as being in a “dynamic equilbrium”, where things are always changing but the body always works towards being at equilibrium.
(In the case of distillation, it’s all about liquids-vapor equilibrium: at equilibrium different substances distribute themselves differently in the liquid and gas phases. You can exploit this difference to separate the compounds.)
What I find so interesting is that you can see so much of the natural world and the universe is just trying to reach equilibrium. Given the means and left to its own devices, things will always try to reach a stable configuration. I kind of see this as something like a Universal Intent, that the Universe wants things to reach equilibrium. Then, in a philosophical way, you can start to see the universe as alive and that is working towards subsistence. I mean, just look at the words I used to describe it; that the universe can try and have intent and work are qualities we assign to a living things, and they feel to me the correct words to describe what’s happening.
The thing is, our bodies are truly a bunch of cells that don’t know that they are part of something larger. And those cells are made of atoms that also don’t realize that they are part of something larger. We, then, don’t need to realize that we may be the atoms of the universe. An atom is as simple to us as we are to the universe, after all. And in a way, from an chemical/physical point of view, a human life is a net forward step towards equilibrium, towards stability, in the same way our cells work towards stability. Life may be turmoil, but when we die, we reach death, a state of unending stability. But more, throughout that life, we have killed plants and animals for food and used volatile and unstable chemicals for energy. This allows them as well to reach a new, more stable equilibrium. Through the course of a life, we work, unknowingly, to bring things ever closer to a final equilibrium. For the universe, though we don’t know it, would never really believe it.
I don’t know if that’s beautiful or awful, deep or meaningless, nihilistic or anthropocentric. This is all awfully philosophical and I am no philosopher. These are random thoughts, shower thoughts, my can’t-sleep-so-let’s-ponder-the-meaning-of-life thoughts. My point with all of this is that all these ramblings were sprung into my head because of a topic we covered in a Chemical Engineering course. I think if you take the time to to mull things over, you start to see that all the things we learn have value besides what’s on the syllabus. A Chemical Engineering course certainly won’t teach you the meaning of life, but it might get you thinking about it.