Isolated system

[Hector Acosta Discussion 1H]

What are some things that can change the heat of an isolated system?

[Clarisse Wikstrom 1H]

In class we discussed that the Internal Heat, U, of an isolated system has no change since it not affected by q or w, since it is isolated. Therefore, deltaU = 0.

[Nicole 1F]

ΔU=0 in an isolated system. Energy cannot be transferred between the system and surroundings.

[Scout_2C]

The definition of an isolated system is "a system where neither mass nor energy can be exchanged with the surroundings". So (internal) heat, can't really be changed because if the heat could be changed then the system couldn't be considered isolated. Usually, these isolated systems are highly insulated which allows the internal heat to be unchanged, no matter the external circumstances.