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Van der waals equation and molar specific heat 
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#1
Apr2214, 01:30 PM

P: 11

the van der waals equation of state is given by (p+an^2/v^2)(vnb)=nRT.how to show that for a gas obeying the above equation of state (∂Cv/∂V) (taking temperature constant)=0?



#2
Apr2414, 04:30 PM

P: 914

Just write out what the heat capacity means.
##C_v = \left(\frac{\partial{Q}}{\partial{T}}\right)_v = \left(\frac{\partial{U}}{\partial{T}}\right)_v## You know how to calculate the internal energy U? Write it using the equation of state. 


#3
Apr2514, 01:11 PM

P: 11

please explain vividly



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