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- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019/Book%3A_Physics_(Boundless)/13%3A_Thermodynamics/13.5%3A_The_Second_Law_of_ThermodynamicsThe second law of thermodynamics states that heat transfer occurs spontaneously only from higher to lower temperature bodies.
- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/14%3A_Thermodynamics/14.4%3A_EntropyThe entropy of a system is a measure of its disorder and of the unavailability of energy to do work.
- https://phys.libretexts.org/Courses/Merrimack_College/Conservation_Laws_Newton's_Laws_and_Kinematics_version_2.0/25%3A_Thermodynamics/25.04%3A_The_Second_Law_and_EntropyIn the course of each cycle, the engine would take in an amount of heat Qh from a “hot reservoir,” give off (or “exhaust”) an amount of heat |Qc| to a “cold reservoir,” and produce an amount...In the course of each cycle, the engine would take in an amount of heat Qh from a “hot reservoir,” give off (or “exhaust”) an amount of heat |Qc| to a “cold reservoir,” and produce an amount of work |W|. (I am using absolute value bars here because, from the point of view of the engine, Qc and W must be negative quantities.) At the end of the cycle, the engine should be back to its initial state, so ΔEengine=0.
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019v2/Book%3A_Custom_Physics_textbook_for_JJC/14%3A_Thermodynamics/14.25%3A_EntropyThe entropy of a system is a measure of its disorder and of the unavailability of energy to do work.
- https://phys.libretexts.org/Courses/University_of_California_Davis/Physics_9B_Fall_2020_Taufour/06%3A_Applications_of_Thermodynamics/6.03%3A_EntropyAn imbalance in pressure changes the volume of a system, resulting in work energy entering or exiting the system. An imbalance of temperature results in heat energy entering or exiting a system, but ...An imbalance in pressure changes the volume of a system, resulting in work energy entering or exiting the system. An imbalance of temperature results in heat energy entering or exiting a system, but what is the state variable (analogous to volume) that this imbalance changes?
- https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_I_-_Classical_Mechanics_(Gea-Banacloche)/13%3A_Thermodynamics/13.04%3A_The_Second_Law_and_EntropyIn the course of each cycle, the engine would take in an amount of heat Qh from a “hot reservoir,” give off (or “exhaust”) an amount of heat |Qc| to a “cold reservoir,” and produce an amount...In the course of each cycle, the engine would take in an amount of heat Qh from a “hot reservoir,” give off (or “exhaust”) an amount of heat |Qc| to a “cold reservoir,” and produce an amount of work |W|. (I am using absolute value bars here because, from the point of view of the engine, Qc and W must be negative quantities.) At the end of the cycle, the engine should be back to its initial state, so ΔEengine=0.
- https://phys.libretexts.org/Bookshelves/Thermodynamics_and_Statistical_Mechanics/Statistical_Mechanics_(Styer)/03%3A_Thermodynamics/3.02%3A_EntropyShow that the work done on the system in changing quasistatically from the initial state (V i , p i ) to the final state (V f , p f ) along the path shown in the figure below is the negative of the ar...Show that the work done on the system in changing quasistatically from the initial state (V i , p i ) to the final state (V f , p f ) along the path shown in the figure below is the negative of the area under the curve.
- https://phys.libretexts.org/Courses/Coalinga_College/Physical_Science_for_Educators_(CID%3A_PHYS_14)/08%3A_Energy_Physics_and_Chemistry/8.07%3A_Thermal_Physics/8.7.13%3A_Entropy_and_the_Second_Law_of_Thermodynamics-_Disorder_and_the_Unavailability_of_EnergyFigure \PageIndex3: (a) Heat transfer from a hot object to a cold one is an irreversible process that produces an overall increase in entropy. (b) The same final state and, thus, the same change...Figure \PageIndex3: (a) Heat transfer from a hot object to a cold one is an irreversible process that produces an overall increase in entropy. (b) The same final state and, thus, the same change in entropy is achieved for the objects if reversible heat transfer processes occur between the two objects whose temperatures are the same as the temperatures of the corresponding objects in the irreversible process.
- https://phys.libretexts.org/Courses/University_of_California_Davis/UCD%3A_Physics_9B__Waves_Sound_Optics_Thermodynamics_and_Fluids/06%3A_Applications_of_Thermodynamics/6.03%3A_EntropyAn imbalance in pressure changes the volume of a system, resulting in work energy entering or exiting the system. An imbalance of temperature results in heat energy entering or exiting a system, but ...An imbalance in pressure changes the volume of a system, resulting in work energy entering or exiting the system. An imbalance of temperature results in heat energy entering or exiting a system, but what is the state variable (analogous to volume) that this imbalance changes?
- https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019v2/Book%3A_Custom_Physics_textbook_for_JJC/12%3A_Temperature_and_Kinetic_Theory/12.03%3A_Temperature_and_Temperature_ScalesCelsius, or centigrade, is a scale and unit of measurement for temperature. It is one of the most commonly used temperature units.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/zz%3A_Back_Matter/10%3A_13.1%3A_Appendix_J-_Physics_Formulas_(Wevers)/1.08%3A_ThermodynamicsClassical thermodynamics and its statistical basis
