Thermochemistry Quiz

Energy is the ability to do work

First fact we know about energy

Every reaction is accompanied by a change in energy

Second fact we know about energy

Usually energy is in the form or work or heat

Third fact we know about energy

Heat

Light

Chemical

Nuclear

Mechanical

Electrical

Kinetic

Potential

Types of energy

Thermochemistry

The study of energy (heat) flow during changes to a system

Heat

Amount of thermal energy possessed by a substance

Can be transferred

Has the ability to do work

Temperature

How fast atoms are moving

Measure of hotness

Particle collisions transfer energy from the faster (hotter) particles to the slower (colder) particles

How heat is transferred

Law of Conservation of Energy

Energy cannot be created or destroyed

Specific heat

The amount of energy required to increase the temperature of one gram of a substance by one celcius degree or one kelvin

Latent heat

Energy required for a phase change.

During a change in phase, there is no change in temperature