1 / 4

Thermodynamics

Thermodynamics. Lessons 20-22 CDT Dallin Rosdahl & CDT Randy Shed. Entropy . Spontaneous Change- change that occurs by itself without an ongoing input of energy outside of the system 1 st Law- Conservation of Energy

carsyn
Download Presentation

Thermodynamics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Thermodynamics Lessons 20-22 CDT Dallin Rosdahl & CDT Randy Shed

  2. Entropy • Spontaneous Change- change that occurs by itself without an ongoing input of energy outside of the system • 1st Law- Conservation of Energy • 2nd Law- all processes occur spontaneously in the direction that increases entropy • 3rd Law- a perfect crystal has zero entropy at absolute zero • Entropy- the amount of ways possible of organizing components of a system

  3. S (entropy) increases when temperature rises • S is greatest at gaseous state • Lowest at solid state • S0rxn=mS0products-nS0reactants

  4. Free Energy • G= measure of the spontaneity of a process and of the useful energy available from it • Gsys=Hsys-T*Ssys • Grxn=mGproducts-nGreactants • G= -RT lnQ/K • G<0 for spontaneous reaction • G>0 for non-spontaneous • G=0 at equilibrium

More Related