Search
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Hybrid_Chem_51_v1/08%3A_Energy_and_Chemistry/7.1_EnergyEnergy is the ability to do work and uses the unit joule. The law of conservation of energy states that the total energy of an isolated system does not increase or decrease.
- https://chem.libretexts.org/Courses/Williams_School/Chemistry_IIA/02%3A_Thermochemistry/2.02%3A_The_First_Law_of_ThermodynamicsThe first law of thermodynamics states that the energy of the universe is constant. The change in the internal energy of a system is the sum of the heat transferred and the work done. At constant pres...The first law of thermodynamics states that the energy of the universe is constant. The change in the internal energy of a system is the sum of the heat transferred and the work done. At constant pressure, heat flow (q) and internal energy (U) are related to the system’s enthalpy (H). The heat flow is equal to the change in the internal energy.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Beginning_Chemistry_(Ball)/07%3A_Energy_and_Chemistry/7.02%3A_EnergyEnergy is the ability to do work and uses the unit joule. The law of conservation of energy states that the total energy of an isolated system does not increase or decrease.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(Fleming)/01%3A_The_Basics/1.01%3A_The_System_and_the_SurroundingsThe page discusses the Zeroth Law of Thermodynamics, emphasizing the importance of defining key terms like "system" and "surroundings." Various types of systems are identified, such as open, closed, a...The page discusses the Zeroth Law of Thermodynamics, emphasizing the importance of defining key terms like "system" and "surroundings." Various types of systems are identified, such as open, closed, and isolated systems, based on how they allow matter and energy transfer. The distinctions between homogeneous and heterogeneous systems are also outlined, along with the significance of intensive and extensive variables.
- https://chem.libretexts.org/Courses/Colorado_State_University_Pueblo/Elementary_Concepts_in_Physics_and_Chemistry/06%3A_Chapter_6_-_Survey_of_Chemical_Reactions/6.09%3A_EnergyEnergy is the ability to do work and uses the unit joule. The law of conservation of energy states that the total energy of an isolated system does not increase or decrease.
- https://chem.libretexts.org/Courses/DePaul_University/Physical_Chemistry_for_Biological_Sciences/11%3A_Entropy_and_The_Second_Law_of_Thermodynamics/11.04%3A_The_Second_Law_of_ThermodynamicsAn isolated system is a little more than just adiabatic. In the latter heat cannot get in or out. In an isolated system nothing gets in or out, neither heat nor mass nor even any radiation, such as li...An isolated system is a little more than just adiabatic. In the latter heat cannot get in or out. In an isolated system nothing gets in or out, neither heat nor mass nor even any radiation, such as light. The isolated system is like a little universe all to itself.
- https://chem.libretexts.org/Courses/Lansing_Community_College/LCC%3A_Chem_151_-_General_Chemistry_I/Text/06%3A_Thermochemistry/6.02%3A_The_First_Law_of_ThermodynamicsThe first law of thermodynamics states that the energy of the universe is constant. The change in the internal energy of a system is the sum of the heat transferred and the work done. At constant pres...The first law of thermodynamics states that the energy of the universe is constant. The change in the internal energy of a system is the sum of the heat transferred and the work done. At constant pressure, heat flow (q) and internal energy (U) are related to the system’s enthalpy (H). The heat flow is equal to the change in the internal energy.
- https://chem.libretexts.org/Bookshelves/General_Chemistry/Map%3A_Chemistry_-_The_Central_Science_(Brown_et_al.)/05%3A_Thermochemistry/5.02%3A_The_First_Law_of_ThermodynamicsThe first law of thermodynamics states that the energy of the universe is constant. The change in the internal energy of a system is the sum of the heat transferred and the work done. At constant pres...The first law of thermodynamics states that the energy of the universe is constant. The change in the internal energy of a system is the sum of the heat transferred and the work done. At constant pressure, heat flow (q) and internal energy (U) are related to the system’s enthalpy (H). The heat flow is equal to the change in the internal energy.
- https://chem.libretexts.org/Courses/University_of_North_Carolina_Charlotte/CHEM_2141%3A__Survey_of_Physical_Chemistry/04%3A_Entropy_and_The_Second_and_3rd_Law_of_Thermodynamics/4.04%3A_The_Second_Law_of_ThermodynamicsAn isolated system is a little more than just adiabatic. In the latter heat cannot get in or out. In an isolated system nothing gets in or out, neither heat nor mass nor even any radiation, such as li...An isolated system is a little more than just adiabatic. In the latter heat cannot get in or out. In an isolated system nothing gets in or out, neither heat nor mass nor even any radiation, such as light. The isolated system is like a little universe all to itself.
- https://chem.libretexts.org/Courses/Bellingham_Technical_College/CHEM_110%3A_Bellingham_Technical_College/04%3A_Module_4/4.07%3A_EnergyEnergy is the ability to do work and uses the unit joule. The law of conservation of energy states that the total energy of an isolated system does not increase or decrease.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Physical_Chemistry_(LibreTexts)/20%3A_Entropy_and_The_Second_Law_of_Thermodynamics/20.02%3A_Nonequilibrium_Isolated_Systems_Evolve_in_a_Direction_That_Increases_Their_Energy_DispersalThis page examines spontaneous processes in isolated systems and the conflict between energy minimization and dispersal. It analyzes relationships involving internal energy, volume work, and heat for ...This page examines spontaneous processes in isolated systems and the conflict between energy minimization and dispersal. It analyzes relationships involving internal energy, volume work, and heat for an ideal gas, revealing that while heat is not a state function, entropy (S) emerges as a state function when considering the integration factor 1/T. This establishes dS = δq_rev/T as an exact differential, thereby quantifying energy dispersal and the number of microstates in the system.
