Physical Chemistry Exam 2

Enthalpy a thermodynamic quantity equivalent to the total heat content of a system. H=U+PV Molar Heat Capacity The amount of (heat) energy necessary to raise the temperature of one mole of a substance by 1K Internal Pressure (πT) a measure of how the internal energy of a system changes when Read more…

Chemistry Chapter 1

Chemistry the study of the composition, structure, and properties of matter, the processes that matter undergoes, and the energy changes that accompany these processes Organic Chemistry the study of most carbon-containing compounds Inorganic Chemistry the study of non-organic substances, many of which have organic fragments bonded to metals (organometallics) Physical Read more…

PHYSICAL CHEMISTRY 1

What are the effects of Intermolecular forces on real gases and the conditions under which these effects become most evident? Molecules in real gases do not completely obey the ideal gas laws because the molecules are subjected to intermolecular forces known as ATTRACTIONS and REPULSIONS. These effects are typically seen Read more…

Chemistry Chapter 1

chemistry study of the composition, structure, and properties of matter, the process that matter undergoes, and the the energy changes that are accompany in these processes organic chemistry study of most carbon containing compounds inorganic chemistry study of non-organic substances, many of which have organic fragments bonded of metals physical Read more…

Physical Chemistry 4B

Exothermic Releases heat Endothermic Absorbs heat How temperature affects rate of reaction – The higher the temperature, the more kinetic energy the particles have so the faster the particles move – So there are more collisions per second (greater frequency of collisions) and more of the particles have sufficient energy Read more…

Spanish 1B Unit 4

el boligrafo pen la calcudora calculator la carpeta folder la computadora computer el cuaderno notebook el diccionario dictionary el lapiz/los lápices pencil/pencils la mochila backpack mucho(a) a lot of, much muchos(as) a lot of, many ¿Necesitas algo para el colegio/la clase de arte? Do you need anything for school/art class? Read more…

equations physical chemistry

vanderwaals interaction v = -1/r^6(cuu + cuu* +cdisp) multiply by na to get per mole average kinetic energy of translation of a particle Etrans=3/2KT energy of translation per mole Etrans,m = 3/2K×nA×T k×nA=R gas constant Etrans,m=3/2RT dispersion interaction v=-3/2 polarizability vol1 x vol2 × (ionization potential 1 ×potential 2/I1 +I2) Read more…

Physical/Chemical

Is color a physical or chemical property? physical Is texture a physical or chemical property? physical Is mass a physical or chemical property? physical Is clarity a physical or chemical property? physical Is volume a physical or chemical property? physical Is density a physical or chemical property? physical Are melting Read more…

Physical and Chemical changes

Rusting Iron Chemical change Melting Ice Physical change Formation of stalagmites in a cave Physical change Fertilizing a lawn Chemical change What are the five signs or symptoms of a chemical change? Production of an odor, change in color, change in temperature/ production of light, formation of a gas/ bubbles, Read more…

physical chemistry lect 3-4 formulas

potential energy for interactions between dipole and a charge V= – (q2µ1)/(4πε₀r^2) potential energy for interactions between dipoles V=µ₁µ₂(1-3cos^2θ)/(4πε₀r^3) Interaction energy between polar molecules in materials (Ideally, it is zero if polar molecules are freely rotating. But, can not freely rotate due to interaction between dipoles even in a gas) Read more…