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Ghadir Seder 1G
Posts: 134
Joined: Sat Sep 14, 2019 12:17 am


Postby Ghadir Seder 1G » Sun Feb 09, 2020 11:27 pm

Can someone explain to me why the graph of an irreversible reaction has a slope of zero, and why the graph of a reversible reaction has a decreasing slope?
Does it have to do with one being under constant pressure?

Nathan Rothschild_2D
Posts: 131
Joined: Fri Aug 02, 2019 12:15 am

Re: graphs

Postby Nathan Rothschild_2D » Sun Feb 09, 2020 11:32 pm

In the pressure and volume graph, irreversible have no slope because it is isobaric, meaning there is not change in pressure. For a reversible reaction an increase in volume should decrease pressure, making the slope decreasing.

Maria Poblete 2C
Posts: 102
Joined: Wed Sep 18, 2019 12:15 am

Re: graphs

Postby Maria Poblete 2C » Sun Feb 09, 2020 11:37 pm

In a reversible reaction, there is a decrease in pressure, making its slope negative. Since there is constant pressure in an irreversible reaction, the slope is 0. The graphs' slopes correlate with whether or not the pressure is changing in reaction.

Eugene Chung 3F
Posts: 142
Joined: Wed Nov 15, 2017 3:03 am

Re: graphs

Postby Eugene Chung 3F » Sun Feb 09, 2020 11:44 pm

y-axis is pressure. Since irreversible systems are isobaric, pressure is constant.

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