https://www.khanacademy.org/science/in-in-class11th-physics/in-in-11th-physics-thermodynamics/in-in-laws-of-thermodynamics/v/first-law-of-thermodynamics-internal-energy 2021-02-07T17:14:01Z First law of thermodynamics / internal energy First law of thermodynamic and internal energy Sal Khan video https://cdn.kastatic.org/googleusercontent/-vQn1Uqq3cVX_oiOnVUX6q0k4aOsTEYrOFNf9KLw6rtFuKEHMJa0f0L971rmBZ1M-vE5KkJLzKNL8cV9XIQb38w First law of thermodynamics / internal energy First law of thermodynamic and internal energy https://cdn.kastatic.org/ka-youtube-converted/Xb05CaG7TsQ.mp4/Xb05CaG7TsQ.mp4 1060 Laws of thermodynamics https://www.khanacademy.org/science/strengthened-shs-physics-2/x4423f488fef32c93:heat-and-thermonadynamics/x4423f488fef32c93:laws-of-thermodynamics/e/first-law-of-thermodynamics 2025-05-14T05:31:01.421518925Z First law of thermodynamics Let's solve a few problems to understand the first law of thermodynamics. Aanchal Arora exercise https://www.khanacademy.org/science/in-in-class11th-physics/in-in-11th-physics-thermodynamics/in-in-laws-of-thermodynamics/v/more-on-internal-energy 2021-01-04T18:35:17Z More on internal energy Getting more intuition of internal energy, heat, and work. Examples of using the first law to calculate work.  Sal Khan video https://cdn.kastatic.org/googleusercontent/6TzjuO8ILgScr3by6EzFsJrXCGejSRPAOKW_227ezFcA57VkjiWMYoKvJjRIyVDqS8_bQOYlFmfEFdo_KsGLrN15 More on internal energy Getting more intuition of internal energy, heat, and work. Examples of using the first law to calculate work.  https://cdn.kastatic.org/ka-youtube-converted/aOSlXuDO4UU.mp4/aOSlXuDO4UU.mp4 825 Laws of thermodynamics https://www.khanacademy.org/science/in-in-class11th-physics/in-in-11th-physics-thermodynamics/in-in-laws-of-thermodynamics/a/what-is-the-first-law-of-thermodynamics 2025-03-07T17:53:35.217025261Z What is the first law of thermodynamics? Learn what the first law of thermodynamics is and how to use it. article https://www.khanacademy.org/science/in-in-class11th-physics/in-in-11th-physics-thermodynamics/in-in-laws-of-thermodynamics/e/sign-of-work-done-heat-and-change-in-internal-energy 2025-03-07T17:53:35.217025261Z Sign of work done, heat and change in internal energy Let's solve some problems to better understand how to find the sign of work done, heat and change in internal energy in thermodynamics. Aakash Bagga exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:thermodynamics/x0e2f5a2c:thermodynamic-processes/e/first-law-of-thermodynamics-word-problems 2025-03-07T17:53:35.217025261Z First law of thermodynamics: word problems Let's solve some problems to better understand how to apply the equation of the first law of thermodynamics. Aakash Bagga exercise https://www.khanacademy.org/science/biology/energy-and-enzymes/the-laws-of-thermodynamics/v/introduction-to-entropy 2021-10-06T19:08:53.089656177Z Introduction to entropy Introduction to entropy, and how entropy relates to the number of possible states for a system. video https://cdn.kastatic.org/googleusercontent/T6WXdV7LynXhhaIjNssG7ANT6yLOJpLwDKkyxIwi3tofD46b47esmMOau0loXGTfMVASTyoGklDvR5BULPDzwOPm Introduction to entropy Introduction to entropy, and how entropy relates to the number of possible states for a system. https://cdn.kastatic.org/ka-youtube-converted/Svvr5uF_FZ8.mp4/Svvr5uF_FZ8.mp4 447 Laws of thermodynamics https://www.khanacademy.org/science/ap-biology/cellular-energetics/cellular-energy/v/second-law-of-thermodynamics-and-entropy 2023-05-02T21:08:26.186654054Z Second Law of Thermodynamics and entropy Entropy is a measure of disorder or randomness in a system. It represents the number of possible states or configurations that a system can take on. According to the Second Law of Thermodynamics, entropy tends to increase over time, meaning that systems naturally progress towards a more disordered or random state. video https://cdn.kastatic.org/googleusercontent/ppieV8AlxHEaQH6o-oTIgZmW6ODor107nEd5kVzcWU0Fw-gmgRG5BnHn65VJgVSO551-BqD2KXLIAMkRviyDwzE Second Law of Thermodynamics and entropy Entropy is a measure of disorder or randomness in a system. It represents the number of possible states or configurations that a system can take on. According to the Second Law of Thermodynamics, entropy tends to increase over time, meaning that systems naturally progress towards a more disordered or random state. https://cdn.kastatic.org/ka-youtube-converted/axG9HuqViDY.mp4/axG9HuqViDY.mp4 512 Laws of thermodynamics https://www.khanacademy.org/science/biology/energy-and-enzymes/the-laws-of-thermodynamics/v/the-second-law-of-thermodynamics 2021-01-04T18:35:18Z Second Law of Thermodynamics The Second Law of Thermodynamics: there can be no spontaneous transfer of heat from cold to hot. video https://cdn.kastatic.org/googleusercontent/8Cpk2OkNWwhQb7qgH7JtbY4Vk-kAlWCHvI7bgd_H5y2dIchB086Mc24vn_NZw0t0I5NeYnf7mZOSAcQPjcf3hXw Second Law of Thermodynamics The Second Law of Thermodynamics: there can be no spontaneous transfer of heat from cold to hot. https://cdn.kastatic.org/ka-youtube-converted/Vc8mmZTrNtI.mp4/Vc8mmZTrNtI.mp4 622 Laws of thermodynamics https://www.khanacademy.org/science/strengthened-shs-physics-2/x4423f488fef32c93:heat-and-thermonadynamics/x4423f488fef32c93:laws-of-thermodynamics/e/spontaneity-and-second-law-of-thermodynamics 2024-07-04T06:50:31.694335863Z Spontaneity and second law of thermodynamics Let's quickly solve this exercise based on our understanding of spontaneity and the second law of thermodynamics. Revathi exercise https://www.khanacademy.org/science/ap-biology/cellular-energetics/cellular-energy/a/the-laws-of-thermodynamics 2021-04-29T07:55:58Z The laws of thermodynamics First and Second Laws of Thermodynamics, as they apply to biological systems. article https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:thermodynamics/x0e2f5a2c:thermal-energy-and-thermal-equilibrium/e/apply-thermodynamics 2025-03-12T14:20:10.072734823Z Apply: thermodynamics Apply your understanding of thermodynamics in this set of free practice questions aligned to NGSS standards. exercise