Q. Two moles of oxygen gas undergoes a process given by P = $\frac{4}{1+{\left(\frac{V}{2}\right)}^{2}}$ where P is pressure (Pa) and V is volume (${m}^{3}$). Find out the rms speed of gas molecule, when volume of gas becomes 4 ${m}^{3}$.

(1) 5$\sqrt{6}$ m/s

(2) 4$\sqrt{12}$ m/s

(3) 12 m/s

(4) 11.5 m/s

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