Write van der Waal's equation for one mole of a gas



(a) Write van der Waal’s equation for one mole of a gas.
(b) What are the conditions under which real gases show ideal behaviour ?
© Critical temperature for C${{O}{2}}$ and C${{H}{4}}$ are 31.1°C and - 81.9°C respectively. Which of these has stronger intermolecular forces and why ?



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