Enthalpy

Enthalpy
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  • Today we are going to be learning about enthalpy. 
  • Enthalpy
  • Enthalpy is the a thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume.
  • In other words, how much heat or energy was added or removed from the element or object.
  • Enthalpy
  • The sun is emitting heat and light which is the base of being Exothermic. And the heat lamp is doing the same as well. 
  • There are two types of Enthalpy Exothermic - The reaction or process in releasing heat  Endothermic - The reaction or process in absorbing heat 
  • The melting ice cube is the absorbing heat which is causing it to melt into a liquid. The tree is absorbing the light and the heat to produce photosynthesis.
  • Enthalpy
  • A way to tell the difference of the two enthalpy is by looking at the object that is the subject. Is it emitting heat, or absorbing the heat. Also you can tell the difference between the two by the outcomes of the equations. If the answer is a negative then the outcome is an exothermic reaction, and vice versa for the other reaction. 
  • Enthalpy
  • Law of Conservation
  • The law of conservation, it means that energy can not be destroyed or make it disappear out of thin air. It it either transforming it or transferring it. From electricity to sound it transforming the energy into something new. Transferring is like from a battery to a flashlight to make light. 
  • https://docs.google.com/document/d/1gIhrXk3Q_EgNAV9j4_ZSnZUNGoS4dYvdhcPKOn0aJZk/edit?usp=sharing
  • Go to site for the equation examples.
  • Enthalpy
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