Editing Internal energy
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 1: | Line 1: | ||
[[Category: Physics]] | [[Category: Physics]] | ||
== Explanation == | == Explanation == | ||
− | Internal energy '''U''' of a system is the sum of all its microscopic [[kinetic energy]], microscopic [[potential energy]] and other forms of microscopic energy it has. In another form, the change in the internal energy '''ΔU''' of a system can be expressed as the sum of the amount of | + | Internal energy '''U''' of a system is the sum of all its microscopic [[kinetic energy]], microscopic [[potential energy]] and other forms of microscopic energy it has. In another form, the change in the internal energy '''ΔU''' of a system can be expressed as the sum of the amount of heat transferred to (or from) the system '''Q''' and the work done to (or by) the system '''W'''. The values of '''Q''' and '''W''' would take a negative sign, in the case of heat removed from the system and work done by the system. |
'''ΔU = Q + W''' | '''ΔU = Q + W''' |