Question -
Calculate the pressure of one mole of nitrogen gas in a 10 L cylinder at 50∘C using the Van der Waal's equation.Also find the value of ideal gas pressure.(Van der Waal's constants a and b for nitrogen are 1.4L2atmmol−2and0.04L2mol−1 respectively) .
Options:
A .  2.18 atm
B .  2.965 atm
C .  2.652 atm
D .  None of these
Answer: Option D : D From Van der Waal's equation , ⟮p+aV2⟯⟮V−b⟯=RT We get , ⟮p+1.4100(10−0.04)=0.0821×323⇒p=2.648atm From ideal gas equation, we have p=RTV=0.0821×32310=2.652 Pideal=2.648atmPreal=2.652atm
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