CHEM 1310 Lecture Notes - Lecture 2: International System Of Units, Bohr Model, Mississippi Highway 1

• School: University of Manitoba
• Department: Chemistry
• Course: CHEM 1310
• Professor: Sara Vakili

Document Summary

Thermal or heat: not the same as temperature, directly proportional (positively correlated) Ekinetic= 0. 5(mv)2 used for particles: m=mass(kg, v=speed in ms-1. Eavg=3rt/2na: r=gas constant, t=temperature, na=avogad(cid:396)o"s (cid:374)u(cid:373)(cid:271)e(cid:396) Stored in the chemicals position and structure. Energy = e=mc2: m=mass, c=speed of light constant. Electrical charges: e=kq1q2/r (cid:894)coulo(cid:373)(cid:271)"s law(cid:895) r=distance between particle centres, q1q2=charges k=constant. Law of conservation of energy (1st law of thermodynamics) Energy cannot be destroyed or created it can only be transformed and moved through substances from one place to another transformation of energy from one type to another. Inner or core e- processes: ultraviolet, motion of valence e, visible, motions of valence e-(400nm-700nm) Infrared (ir: molecular motions; atoms vibrating; creates heat as a by-product, microwaves, atoms or molecules rotating in circles; microwaves generate heat when used through light to move molecules, radiowaves, wifi, cellular phones; spinning of p+ in nucleus. Function as double waves: how to measure frequency (cid:894)(cid:862)(cid:374)u(cid:863) or (cid:895)