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OpenStudy (anonymous):
archit dropped a crystal of pottasium permaganate in to 2 beakers A nd B containing hot nd cold water. after keeping the them undisturbed for few minutes what did he observe and why?
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thomaster (thomaster):
First of all Potassium permanganate will dissolve in water to give an intensely pink solution. If I say that the crystal will dissolve faster in hot water than cold water, what do you think the difference will be between beaker A and B?
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Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
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