Questions
The coefficients of thermal conductivity of copper, mercury and glass are respectively . If the same quantity of heat is to flow per second per unit area of each and corresponding temperature gradients are
detailed solution
Correct option is C
QAt = K∆θl ⇒ K∆θl = constant⇒ ∆θl directly proportional to 1KHence, if Kc > Km > Kg, then(∆θl)c<(∆θl)m < (∆θl)g ⇒ Xc < Xm < XgBecause higher K implies lower value of the temperature gradient.Talk to our academic expert!
Similar Questions
A body of length 1 m having cross sectional area has heat flow through it at the rate of 6000 Joule/sec. Then find the temperature difference if K = 200 J
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