Stuck on Real Gas Problem Derivatives?

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SUMMARY

The discussion centers on solving derivatives related to the Real Gas Problem, specifically focusing on calculating the critical volume (Vm (crit)). The user initially struggled to isolate Vm (crit) after setting the derivatives to zero. A suggested approach involved rearranging the equations by moving the second term to the right side and then dividing the two resulting equations, which proved to be a helpful method for the user.

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Homework Statement



The task is the following:

DqyYiM7.png


Homework Equations

The Attempt at a Solution



I calculated the derivatives for Vm (crit) and set them = 0, but somehow I can't solve the equation to obtain Vm (crit) on one side alone.

This is how far i managed to do it:

jyTvnaB.png


Can someone help me?
 
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One approach: For each equation move the second term on the left to the right side. Then divide the two equations.
 
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Wow, thanks!

I totally forgot that method
 

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