4. Calculate the pressure (in bars) exerted by \( 1 \mathrm{~mol} \) of \( \mathrm{CH}_{2}(\mathrm{~g} \) ) that occupies a \( 250 \mathrm{~mL} \) contain at \( 0^{\circ} \mathrm{C} \) using van der Waals equation of state and perfect gas law. Compare the values v experimental value 78.6 bar. (Given van der Waals parameters for \( \mathrm{CH}_{4}(\mathrm{~g}): a=2.306 \mathrm{dm}^{6} \) bar mol \( { }^{2} \) and \( b=0.043067 \) \( \left.\mathrm{mol}^{-1}\right) \)
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We know that 1 dm^3 = 1000 mL. So, 250 mL = 0.25 dm^3. Show more…
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