Survey of General Chemistry - CHM 1040 & CHM 1020 Exam III

These flashcards cover key vocabulary and concepts from the Survey of General Chemistry and Exam III notes.

Atmosphere

Layer of air that surrounds the Earth.

Barometer

Device used to measure atmospheric pressure.

Compressibility

Measure of the change in volume resulting from pressure change.

Gas Law

Describes in mathematical terms the relationship of Pressure (P), Volume (V), Temperature (T), and number of moles (n).

Sphygmomanometer

Device used to measure blood pressure.

Pressure

Force applied per unit area.

Thermal expansion

Measure of the change in volume resulting from temperature change.

Boyle's Law

States that pressure and volume are inversely related at constant temperature.

Charles' Law

States that volume and temperature are directly related at constant pressure.

Dalton's Law

In a mixture of gases, the partial pressures of each gas added together equals the total pressure.

Kinetic Molecular Theory

1. Matter is made of tiny particles. 2. Particles are in constant motion. 3. Particles do not attract each other.

Endothermic

Change in state in which heat energy is absorbed.

Exothermic

Change in state in which heat energy is released.

Hydrogen bond

Intermolecular forces found in compounds that contain OH, NH, or HF.

Covalent forces

Forces that hold a bond together due to the sharing of electrons.

Dipole-dipole forces

Intermolecular forces that occur between polar molecules.

Ionic forces

Forces that hold a bond together due to the transfer of electrons.

Liquid

Matter that has a definite volume but an indefinite shape.

Solid

Matter that has a definite volume and shape.

Gas

Matter that has an indefinite volume and shape.

Volatile

Substances with high vapor pressure.

Vapor pressure

Pressure exerted by a vapor when a liquid and vapor are in equilibrium.

London forces

Temporary intermolecular forces found in all molecules.

Boyles law

Pv=Pv

Charles law

V/T =V/T

Avo number for equations

V/n=V/n

Ideal gas law

PV=nRT

Pressure vs temp

P/T =P/T