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Van der waals equation and molar specific heat

by koustav
Tags: equation, heat, molar, specific, waals
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koustav
#1
Apr22-14, 01:30 PM
P: 11
the van der waals equation of state is given by (p+an^2/v^2)(v-nb)=nRT.how to show that for a gas obeying the above equation of state (∂Cv/∂V) (taking temperature constant)=0?
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Khashishi
#2
Apr24-14, 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.
koustav
#3
Apr25-14, 01:11 PM
P: 11
please explain vividly


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