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It takes 24 hours to fill a swimming poo...

It takes 24 hours to fill a swimming pool using two pipes. If the pipe of larger diameter is used for 8 hours and the pipe of the smaller diameter is used for 18 hours. Only half of the pool is filled. How long would each pipe take to fill the swimming pool.

Text Solution

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(i) When HCl is added to Shahabad stone effervescence of `CO_(2)` is formed.
(ii) The `CO_(2)` effervescence is formed slowly with the pieces of Shahabad tiles while at the faster speed with the powder.
(iii) This is because the rate of a reaction depends upon the size of the particles of the reactants taking part in the reaction.
(iv) Smaller the size of the reactant particles more is the surface area available for the reaction and higher is the rate of reaction.
(v) Hence, it takes time for pieces of Shahabad tiles to disappear in HCl, but its powder disappears rapidly.
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