Page 1 of 1
Q5. (20 marks) A hollow sphere of inner radius r = 30 cm and outer radius 12 = 50 cm is heated at the inner surface. The
Posted: Mon Nov 15, 2021 4:13 pm
by answerhappygod
- Q5 20 Marks A Hollow Sphere Of Inner Radius R 30 Cm And Outer Radius 12 50 Cm Is Heated At The Inner Surface The 1 (44.06 KiB) Viewed 58 times
Q5. (20 marks) A hollow sphere of inner radius r = 30 cm and outer radius 12 = 50 cm is heated at the inner surface. The temperature at the inside and outside surfaces of the sphere is T and T2. The thermal conductivity of the material is k= 170 W.(m.K)'. (a) Demonstrate that the rate of heat conduction is computed by the formula: P=4nkring I, –T, 12-1 (b) The difference of temperature between two surfaces of the sphere is 7.0°C. Find the rate of heat flow out of the sphere. -END-