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(i) Explain the nature of the graphs of ...

(i) Explain the nature of the graphs of logP versus log V and logV versus logT.
(ii) What are the units of the van der waals constant 'a' and 'b' ?

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(i) The plot of log P versus logV indicates a straight line with negative slope (-1). The plot of logV versus logT indicates a straight line with positive slope (+1).
(ii) Unit of 'a' is atm`*L^(2)*mol^(-2)`, unit of 'b' is `L*mol^(-1)`.
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