View the complete course: https://ocw.mit.edu/5-111F14 Instructor: Catherine Drennan An introduction to the chemistry of biological, inorganic, and organic molecules with emphasis on basic principles of atomic and molecular electronic structure, thermodynamics, acid-base and redox equilibria, chemical kinetics, and catalysis. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Curated by: MIT OpenCourseWare (35 videos)
MIT 5.111 Principles of Chemical Science, Fall 2014 View the complete course: https://ocw.mit.edu/5-111F14 Instructor: Catherine Drennan Using liquid nitrogen, we observe that lowering the temperature slows reaction rates. The concept of activation energy is introduced; there is always some energy needed when two molecules come together that allows them to react. Only molecules that have this critical energy, and can overcome this activation energy barrier, will react and go on to product. Lower temperature means that fewer molecules with have this critical amount of energy. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu