The second law of thermodynamics : Introductory video

Before watching the video read the questions below. As you watch the video try to answer them

Questions

    • Explain why all real engines are less efficient than the Carnot engine
    • In a real engine does the gas inside the piston return to its original state on completion of a cycle as happens in the Carnot cycle? Explain your reasoning
    • Write the Clausius inequality.
    • Give a mathematical expression for the second law of thermodynamics
    • Explain in your own words how the mathematical expression you just arrived at for the second law of thermodynamics is derived from the Clausius Inequality.