The heat transfer by conduction through a thick cylinder (Q) is given by (where T₁ = Higher temperature, T₂ = Lower temperature, r₁ = Inside radius, r₂ = Outside radius, l = Length of cylinder, and k = Thermal conductivity)

Q = 2.3 log (r₂/r₁)/[2πlk (T₁ - T₂)]

Q = [2πlk (T₁ - T₂)]/2.3 log (r₂/r₁)

Q = [2π (T₁ - T₂)]/2.3 lk log (r₂/r₁)

Q = = 2πlk/2.3 (T₁ - T₂) log (r₂/r₁)

The heat transfer by conduction through a thick cylinder (Q) is given

1.	The heat transfer by conduction through a thick cylinder (Q) is given by (where T₁ = Higher temperature, T₂ = Lower temperature, r₁ = Inside radius, r₂ = Outside radius, l = Length of cylinder, and k = Thermal conductivity)
A.	Q = [2πlk (T₁ - T₂)]/2.3 log (r₂/r₁)
B.	Q = 2.3 log (r₂/r₁)/[2πlk (T₁ - T₂)]
C.	Q = [2π (T₁ - T₂)]/2.3 lk log (r₂/r₁)
D.	Q = = 2πlk/2.3 (T₁ - T₂) log (r₂/r₁)
Answer» B. Q = 2.3 log (r₂/r₁)/[2πlk (T₁ - T₂)]

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The heat transfer by conduction through a thick cylinder (Q) is given by (where T₁ = Higher temperature, T₂ = Lower temperature, r₁ = Inside radius, r₂ = Outside radius, l = Length of cylinder, and k = Thermal conductivity)

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