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HelloCthulhu
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Homework Statement
Solve for the work done during water electrolysis using the Van Der Waals equation.[/B]
Solving for work using Ideal Gas Law:
This is the system work for the electrolysis of water using the Ideal Gas Law:
W = PΔV = (101.3 x 103 Pa)(1.5 moles)(22.4 x 10-3 m3/mol)(298K/273K) = 3715 J
http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/electrol.html
Homework Equations
[/B]
Van der Waals Equation
The Attempt at a Solution
[/B]
For 1 mL of water:
w= [nRT/(V-nb) − (an^2)/V^2] dV
a= 5.536 b=0.03049
w= [(1.5)( 8.3144621)(298)/(0.001)-(1.5)(0.03049)] − (5.536)(1.5)^2)/(0.001)^2] d(0.001)
w = -8739.4 J