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  • In van dar Wall equation  <img alt="\left[\mathrm{P}+\frac{\mathrm{a}}{\mathrm{V}^{2}}\right][\mathrm{V}-\mathrm{b}]=\mathrm{RT};" src="/latex-image/?%5Cleft%5B%5Cmathrm%7BP%7D&plus;%5Cfra

In van dar Wall equation  \left[\mathrm{P}+\frac{\mathrm{a}}{\mathrm{V}^{2}}\right][\mathrm{V}-\mathrm{b}]=\mathrm{RT};  \mathrm{P} is pressure, \mathrm{V} is volume, \mathrm{R} is universal gas constant and \mathrm{T} is temperature. The ratio of constants \frac{\mathrm{a}}{\mathrm{b}} is dimensionally equal to :
 

Option: 1

\mathrm{\frac{P}{V}}


Option: 2

\mathrm{\frac{V}{P}}


Option: 3

\mathrm{PV}


Option: 4

\mathrm{PV^{3}}


Answers (1)

best_answer

From the given equation 

\mathrm{\left [ a \right ]=\left [ pv^{2} \right ]}

\mathrm{\left [ b \right ]=\left [ v \right ]}

\mathrm{\left [ \frac{a}{b} \right ]=\left [ pv \right ]}

Hence, correct answer is option (3)

Posted by

himanshu.meshram

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