CHEM 1050 Chapter Notes - Chapter 6: Molar Mass

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Thermodynamics is the science of the relationships between heat and other forms of energy. It concerns the study of the quantity of heat absorbed or evolved (given off) by chemical reactions. Energy: the potential or capacity to move matter, it is not a material thing but rather a property of matter; it exists in different forms that can be interconverted. Kinetic energy is the energy associated with an object by virtue of its motion. Si unit: joule (j), a very small unit. Ek=1/2mv2 : this shows that the kinetic energy of an object depends both on its mass and its speed. Potential energy is the energy an object has by virtue of its position in a field of force. Only the differences of potential energy are important in any physical situation. Internal energy is the sum of the kinetic and potential energies of the particles making up a substance (u)

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