Question
Question: The heat is flowing through a rod of length 50 cm and area of cross-section 5cm<sup>2</sup>. Its end...
The heat is flowing through a rod of length 50 cm and area of cross-section 5cm2. Its ends are respectively at 250C and 1250C. The coefficient of thermal conductivity of the material of the rod is 0.092 kcal/m×s×0C. The temperature gradient in the rod is
A
2 0C / cm
B
2 0C / m
C
20 0C / cm
D
10 0C /m
Answer
2 0C / cm
Explanation
Solution
Temperature gradient
=ΔxΔθ=Δxθ2−θ1=50125−25=2oC/cm.