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Naaman.Unit# 14

You Be the Teacher - Thermodynamics

TermDefinition
Potential energy due to relative position
kinetic energy due to relative velocity
internal energy kinetic + potential energy with all the basic building blocks (atoms, molecules, etc.) of a system
work energy changing systems due to pressure change
Heat energy changing systems due to temperature change
Closed system same amount of stuff (mass), but energy can be transferred but cannot go through system boundaries
Temperature a measure of the relative hotness or coldness of a material
pressure the normal (perpendicular) component of force per unit area
Volume the quantity of space possessed by a material
Entropy the quantity of disorder possessed by a material
thermodynamic cycle a process for which the final and initial states are the same
heat capacity the amount of energy required to increase the temperature of one unit quantity of material by one degree
Enthalpy internal energy plus the pressure-volume product
Closed system same amount of stuff in it; energy can be transferred but mass cannot (past “system boundaries”)
Open system in a specific place; mass and energy can be transferred (“system boundaries”)
Isolated system energy and mass cannot be transferred (“system boundaries”)
Internal energy 𝚫U = Q - W
U internal energy
Q Heat
W Work
(Delta) Change
Created by: doc22n