Question 91 of 138

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

(1) 25

(2) 50

(3) 75

(4) 100