Measuring Energy Changes

Energy

  • Defined as the ability to do ‘work’ which is to move an object against an opposing force.

  • Can be classified as potential or kinetic

  • Comes in many forms such as heat, light, sound, electricity and chemical energy

different forms of energy

Chemistry System

Open vs. Closed System

Open

Closed

can exchange energy and matter with the surroundings

can exchange energy, but not

matter. eg. glow sticks

Enthalpy

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