Irreversible and Reversible Processes

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JanejilaSnider2F
Posts: 10
Joined: Fri Sep 25, 2015 3:00 am

Irreversible and Reversible Processes

Postby JanejilaSnider2F » Sat Jan 16, 2016 12:32 pm

Under what conditions is a system reversible or irreversible? Does it depend if it's at constant volume or pressure or no? Or (on someone's previous question) can you only tell if it's at equilibrium?

fourmethylhexane
Posts: 9
Joined: Wed Nov 11, 2015 3:00 am

Re: Irreversible and Reversible Processes

Postby fourmethylhexane » Sat Jan 16, 2016 12:59 pm

Whether a system is reversible or not is not correlated with constant volume or pressure. Rather, a system is reversible if there is constantly an equal pressure acting against the expansion. Thus, minute changes to properties in the system result in a reversal of the reaction. Generally, a reversible process is usually one near or at equilibrium.

Rachel Risoleo 3G
Posts: 19
Joined: Fri Sep 25, 2015 3:00 am

Re: Irreversible and Reversible Processes

Postby Rachel Risoleo 3G » Sun Jan 17, 2016 9:37 pm

Also, because a reversible process has minute changes to properties (i.e. volume, pressure), irreversible processes generally have larger and faster changes to these properties (for example, a gas might expand quickly, in one large increment, rather than slowly in many small ones).


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