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Finely divided catalyst has greater surface area and has greater catalytic activity than the compact solid. If a total surface area of 6291456 `cm^(2)` is required for adsorption in a catalytic gaseous reaction, then how many splits should be made in a cube of exactly 1 cm in length to achieve required surface area? [Given : One split of a cube gives eight cubes of same size]A. 60B. 80C. 20D. 22 |
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Answer» Correct Answer - C Total Surface area of eight cubes `=8xx6xx(1/2xx1/2)^2` Apply the formula Surface area on n split of a cube `=8^nxx6xx(1/2)^(2n)` `6291456=8^n xx 6 xx (1/2)^(2n)` |
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