Energy Balance On a Closed System
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Energy Balance On a Closed System

INSTRUCTOR: We’re gonna apply the first law to two closed systems, and then compare the final results. One’s a constant pressure system, piston and cylinder, pressure is .5 megapascals. The other is a fixed volume cylinder. They both contain one mole, and they’re starting at the same temperature, same pressure, so we’re starting at the […]

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Energy Transfer
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Energy Transfer

Hi. It’s Mr. Andersen and this is chemistry essentials video 48. It’s on energy transfer or how energy gets from one place to another. And a great example of that is in a four stroke engine. So in an internal combustion engine. So if we started playing, what really is going on is that we’re […]

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The (Arguably) Most Important Instrument in Physics
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The (Arguably) Most Important Instrument in Physics

[♪ INTRO] Alright, honesty time; here comes the true-true train. You probably don’t think much about thermometers. If you have one, it’s likely for when you’re sick, or someone in your house is sick, or maybe it’s hanging in the backyard somewhere as a decoration. But get ready to appreciate these things a lot more. […]

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Life Requires Free Energy
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Life Requires Free Energy

Hi. It’s Mr. Andersen and welcome to biology essentials video number 12. This is on free energy and how life requires free energy. Now I am going to assume that you know what free energy is. If you don’t, make sure you watch the video that I made called Gibbs Free Energy. And it talks […]

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What is the First Law of Thermodynamics?
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What is the First Law of Thermodynamics?

So here I have a balloon filled with hydrogen. It has a lot of chemical energy as hydrogen gas, when mixed with oxygen, is a very potent fuel. By igniting the balloon, I add energy and set off a reaction between hydrogen and oxygen that releases a lot of energy in the form of heat. […]

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