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Line 1: − + + + − In an irreversible process it is impossible to incrementally undo the changes and restore the original state with its original [[entropy]].
Irreversible process (view source)
Revision as of 22:54, September 8, 2007
, 22:54, September 8, 2007no edit summary
An irreversible process is a [[thermodynamic]] process that results in an increase in [[entropy]]. Examples include the puncturing of a tire or the melting of ice.
An '''irreversible process''' is a process in which it is impossible to return both the system and its surroundings to its original state by reversing from process. For instance, a combustion engine transforms gasoline into engine exhaust and energy; however, no process can turn the engine exhaust and the energy transfered to the car cannot be transformed back into gasoline. Irreversible processes generally involve an increase in [[entropy]].
Causes of irreversible processes include friction, unrestrained fluid expansion, heat transfer, and mixing.
[[category:physics]]
[[category:physics]]