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Scorching goIITian

Joined:	2 Jan 2012
Post:	213

30 Apr 2012 11:29:09 IST

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201

heat

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A cylindrical copper rod of length 1.2 m and crosssectional

area 4.8 cm2 is insulated to prevent heat loss through its

surface. The ends are maintained at a temperature difference of

100 C° by having one end in a water – ice mixture and the other in

a mixture of boiling water and steam. (a) At what rate is energy

conducted along the rod? (b) At what rate does ice melt at the

cold end?

Comments (1)

Juhi Sharma

Blazing goIITian

Joined: 22 May 2009

Posts: 2467

8 May 2012 16:41:42 IST

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u just need to know the speceic cunductance of copper and latent heat heat of usion of ice..

Now here

100=L*dq/dt/K*A

from here u can get dq/dt

which would rate of heat lose

And equating dq/dt = M*L

u will get mass of ice converting to water per second

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