The conservation energy is one of most important engineering fundamentals. It is used by chemical engineering, mechanical engineering and electrical energy.
It simply states that energy can not be created or destroyed.

There are a few way to change the energy of a system. The energy can be changed by adding or removing heat, work, and through mass entering and leaving the system.
There are several types of work, such as force through displacement, electrical work, torque and angular displacement, and electrical work.

There is also energy from mass entering the leaving the system.

In the next session I will put together the equations for the sonservation of energy.
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