Purple flying peeps o' liter?
The general formula for entropy, and we tried to find examples within the classroom of entropy change.
A Stirling engine, more complicated than a standard Carnot engine but only has two steps. Each step does work though.
The engine in action, hot and cold reservoirs are on the top and bottom of the plate attached to the beaker.
The standard formula for finding the efficiency of a Carnot engine. And finding the maximum efficiency based on the temperatures.
We compare the effectiveness of a reverse Carnot engine and a standard heater.
The different thermodynamic cycles plotted on a temperature verses entropy graph.
Professor Mason's calculations for the previous problem.
Given the formula for finding effectiveness, we calculate an expected efficiency and are given the actual efficiency. The then find the effectiveness to be a percentage out of 100%.
The first W term is supposed to be Q_H.
Knowing that the temperatures of two reservoirs should come to equilibrium, we find a formula to find the equilibrium point if an engine is producing work between them. This only works for a completely reversible process.
We used the formula we found to find this one based on the previous one.
An example problem we did where we found the maximum CoP and then found the actual CoP, then we found Q_C since we were given the power of the engine and our CoP. We then used the work formula Q_H - Q_C to find Q_H.
Given the power of a reverse heat engine, we found how long it would take for a specific engine to freeze a set amount of water into ice.
Professor Mason's bubble making device, they fell to the ground even though the air inside of them was hotter than the air outside because the mass of the bubble was too great.
Professor Mason then filled the bubbles with methane gas and proceeded to set the alight with fire.
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