2nd law and Carnot cycle

IB Physics: 2nd law and Carnot cycle

The second law is one of the NOS examples given in the subject guide showing how different perspectives lead to different statements of the same law.The Carnot cycle is the simplest cycle to model in terms of energy changes, It also helps to lead into the bit about engines not being able to be 100% efficient due to the 2nd law.I always introduce the second law using the PhET gas simulation shown below. This helps students...

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