Question

2. The area of cross-section of an iron plate of thickness
2 cm is 5000 cm². The temperatures of its surfaces
are 150°C and 140°C respectively. Calculate the rate
of heat transmitted through this plate. Coefficient of
thermal conductivity of iron is 0.015 kcal s-1 m-ldegree c-1.
​

Answer 1

Answer:

-350kcal/m2

Explanation:

Q=-kAdT/dX

Q=-[0.015×5000×10]÷2

Q=-[750]÷2

Q=-350kcal/m2