Chemistry Test 9/16/08

Energy

The ability to do work

Endothermic Reaction

Chemical reaction in which energy is absorbed

Exothermic Reaction

Chemical reaction in which energy is released

A ___ consists of all the components that are being studied at any given time

System

Kinetic Energy

Energy of an object that is due to the object's motion

Temperature

Measure of average kninetic energy

Absolute Zero

Temperature at which the minimim average kinetic energies of all particles occur.

C-K

C + 273.15

K-C

K - 273.15

Accuracy

How close the measurement is to the true or actual value

Precision

How closely several measurements agree or the exactness of a measurement

Specific Heat Equation

p = e/m(DeltaT)

Chemical Energy

the energy released when chemical bonds are broken or formed

Specific Heat

Energy required to raise one gram of a substance one K or one C