Question

- At a certain temperature for which RT = 25 L ati
mol', the density of a gas, in g L-', is d = 2.00 P
0.020 P2, where P is the pressure in atmosphere. T
molecular weight of the gas in g mol-1 is:
(b) 75
(d) 35
(a) 60
he 50​

Answer 1

Explanation:

The relationship between the molecular weight and density is

P→0

Lt

p

d

=

RT

M

.

Substitute values in the above expression.

M=2RT=50.

Thus the molecular weight is 50gmmol

−1

.

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