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Thermochemistry & Thermodynamics

6 terms

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Internal Energy Thermochemistry & Thermodynamics J The total kinetic and potential energy of all the particles within a system. ΔU = q + w Irreversible Process Thermochemistry & Thermodynamics J/K A real process that passes through non-equilibrium states and cannot be reversed without leaving a permanent change in the surroundings. ΔS_universe > 0 Isobaric Process Thermochemistry & Thermodynamics J A process carried out at constant pressure. q_p = ΔH Isochoric Process Thermochemistry & Thermodynamics J A process carried out at constant volume, so that no expansion work is done. w = 0, q_V = ΔU Isolated System Thermochemistry & Thermodynamics Dimensionless A system that exchanges neither energy nor matter with its surroundings. ΔU = 0 Isothermal Process Thermochemistry & Thermodynamics J A process carried out at constant temperature, with heat exchanged as needed to maintain it. ΔU = 0 (ideal gas), w = −nRT ln(V₂/V₁)