CHM135H1 Lecture 24: 09/11/16 CHM135H1 F LEC0101 Lecture 24 Notes
90
CHM135H1 Full Course Notes
Verified Note
90 documents
Document Summary
Chm135h1 f - lecture 24 - chapter 9 (1) Energy is a number which can be calculated with complicated method: this number does not change when a process takes place. Conservation of energy law: energy cannot be created or destroyed; can only be converted from one form to another. Abstract definition is meaningful in terms of chemistry laws, e. g. conservation of energy. All expressions for conservation of energy are abstract. Potential: stored energy, can be converted into motion: kinetic: motion itself. Object at rest stays at rest unless external force applied. Law of conservation of energy: isolated system moves in such a way e is conserved (i. e. does not change) 1. lifting weight: force is applied to raise a certain object against a gravitational energy that is increasing with height of object. W = f x( ) dx = u x. Two types of work: pv for gases; electrical for chemical systems.
