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Grade 11Thermal Physics

Two vessels of different materials are similar in size in every respect. The same quantity of ice filled in them gets melted in 20 minutes and 40 minutes respectively. The ratio of thermal conductivities of the materials is

niharika

8 Years agoGrade 11

1 Answer

Arun

8 Years ago

Q = K* A ( $\theta$ 1 - $\theta$ 2)* t/L

Because A, L and temp. Difference

Hence

At constant pressure

K1/K2 = t1/t2

K1/K2 = 40/20 = 2

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