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At a certain temperature for which RT = 25 litre atm mol –1 , the density of a gas, in gm litre –1 , is d = 2.00 P + 0.020 P2, where P is the pressure in atmosphere. The molecular weight of the gas in gm mol –1 is (A) 25 (B) 50 (C) 75 (D) 100



At a certain temperature for which RT = 25 litre atm mol–1, the density of a gas, in gm litre–1, is d = 2.00 P + 0.020 P2, where P is the pressure in atmosphere. The molecular weight of the gas in gm mol–1 is


        (A)    25


        (B)    50


        (C)    75


        (D)    100


Grade:11

1 Answers

Simran Bhatia
348 Points
7 years ago

(B)

 

Sol.   PV = nRT

 

        V =  . T   Þ V = KT

 

        \      log P = log T + log K

 

        Linear dependence with positive slope

 

At the Y-intercept P/t®0 and P®0 inplying P®0, under such conditions all gases show ideal behavior.

 

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