Two moles of ammonia occupied a volume of 5L at 270C. Then the pressure of the gas(atm) if it obeyed Vanderwaals gas equation(a=4.17atm.L2mol-1,b=0.0371 Lmole-1) (Round off to nearest integer)

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answer is 9.

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Detailed Solution

(p+an2V2)(V-nb)=nRT (p+4.17×2255)(5-2×0.0371)=2×0.082×300 =9.33 atm

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