reversible/irreversible

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Marsenne Cabral 1A
Posts: 59
Joined: Fri Sep 28, 2018 12:19 am

reversible/irreversible

Postby Marsenne Cabral 1A » Sun Jan 27, 2019 4:10 pm

Can someone help me clear up the difference between reversible and irreversible reactions and the difference in work?

505095793
Posts: 61
Joined: Fri Sep 28, 2018 12:25 am

Re: reversible/irreversible

Postby 505095793 » Sun Jan 27, 2019 4:21 pm

In terms of thermodynamics a reversible reaction has no change in entropy, so no extra energy is needed to reverse the reaction. Irreversible reactions on the other hand cause an entropy increase to reverse the reaction.

Edward Xie 2E
Posts: 63
Joined: Fri Sep 28, 2018 12:23 am

Re: reversible/irreversible

Postby Edward Xie 2E » Sun Jan 27, 2019 4:41 pm

A good example of an irreversible reaction is combustion.

Jchellis 1I
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am

Re: reversible/irreversible

Postby Jchellis 1I » Sun Jan 27, 2019 10:35 pm

Is combustion even reversible with added energy?

105169446
Posts: 32
Joined: Fri Sep 28, 2018 12:16 am

Re: reversible/irreversible

Postby 105169446 » Sun Jan 27, 2019 10:50 pm

No, I believe combustion is never reversible, no matter the circumstances. The C02 and water formed cannot react to reform the fuel and oxygen, so the reaction is always irreversible.

Alma Flores 1D
Posts: 64
Joined: Wed Nov 08, 2017 3:01 am

Re: reversible/irreversible

Postby Alma Flores 1D » Sun Jan 27, 2019 11:00 pm

Combustion cannot be reversible. The products (carbon dioxide and water) cannot react to form the reactants (fuel and oxygen).

juleschang16
Posts: 55
Joined: Fri Sep 28, 2018 12:19 am

Re: reversible/irreversible

Postby juleschang16 » Sun Jan 27, 2019 11:10 pm

In a irreversible reaction, the reactants react to form the products, which cannot revert back into reactants. In reversible reactions, as the reactants react with other reactants to form products, the products are reacting with other products to form reactants

404982241
Posts: 47
Joined: Fri Sep 28, 2018 12:17 am

Re: reversible/irreversible

Postby 404982241 » Sun Jan 27, 2019 11:59 pm

In reversible reactions the reactants react with other reactants to form products. In a irreversible reaction the reactants react to form the products, which cannot revert back into reactants.

505211599
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

Re: reversible/irreversible

Postby 505211599 » Mon Jan 28, 2019 12:41 am

A reversible process is one where the system is always at a point of equilibrium whereas the irreversible process is one where the system is not always at equilibrium. Also, reversible processes tend to do more work.


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