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on a cold winter day, the atmospheric temp.is t which isbelow 0degree celcius.acylindrical drum of height h made of bad conductoris completely filled with water at0 degree celcius&is kept outside without any lid.calculate the tim e taken by the whole of water 2 freezethermal conductuivity of ice is k &latent heat of fusion is l.neglect the expansion of water on freezing. my approach q/t=ka(t)/h wher t is temp difference qneeded 2 freeze wateris=ml=d*vol. of cylinder*l where l islatent heat of fusion d=density of water time=qh/ka t my answer came 2 b dlh(square)/kt where as the answer in book is mine answer/2 what's the fallacy in my approach


on a cold winter day, the atmospheric
temp.is t which isbelow 0degree
celcius.acylindrical drum of height h
made of bad conductoris completely
filled with water  at0 degree celcius&is
kept outside without any lid.calculate
the tim e taken by the whole of water 2
freezethermal conductuivity of ice is k
&latent heat of  fusion is l.neglect the
expansion of water on freezing.
my approach
q/t=ka(t)/h wher t is temp difference
qneeded 2 freeze wateris=ml=d*vol. of
cylinder*l where l islatent heat of
fusion  d=density of water
 
time=qh/ka t
my answer came 2 b dlh(square)/kt where as the answer in book is mine answer/2
what's the fallacy in my approach


Grade:upto college level

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