Question

6. Finely divided catalyst has greater surface area and has greater catalytic activity than the compact
then howmany splits should be made to a cube of exactly 1cm in length to achieve required surface
solid. If a total surface area of 6291456cm2 is required for adsorption in a catalysed gaseous reaction,
areas. (Given: One split of a cube gives eight cubes of same size)
B) 80
C) 20
D) 22
A) 60

Non sense answers will be reported.
Most explanatory answers will be chosen as brainliest​

Answer 1

Answer:

Area = 6×(Lenght)×(Length)

Length after n splits = 1/2n

Total surface area after n splits = 8n×6×(Length)×(Length)

8n×6×(1/2n)×1/2n)

(8n/4)×6

2n×6

2n×6 = 6291456

2n = 1048575

n×0.3010 = 6.0206

n = 6.0206/0.3010

n = 20 splits