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  • In Vander waals equation at constant temperature 300 k, if <img alt="\mathrm{a=1.4 \text { atm LL } / \mathrm{mol}^2, V=100 \mathrm{~m},n=1 mol}" src="https://entrancecorner.oncodecogs.com/gif

In Vander waals equation at constant temperature 300 k, if \mathrm{a=1.4 \text { atm LL } / \mathrm{mol}^2, V=100 \mathrm{~m},n=1 mol} then what is the pressure of the gas _______

Option: 1

42 atm


Option: 2

210 atm


Option: 3

500 atm


Option: 4

106 atm


Answers (1)

At moderate pressure vander waals equation is given as :

\mathrm{\begin{aligned} & \left(p+\frac{a n^2}{v^2}\right) v=n R T \\ & \left(p+\frac{1.4}{(0.1)^2}\right)(0.1)=1 \times 0.082 \times 300 \\ & (p+140 \times 0.1)=24.6 \\ & 0.1 p=10.6 \\ & p=106 \mathrm{alm} \end{aligned}}

Posted by

Ramraj Saini

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