An approximately spherical shaped orange (k = 0.23 W/mK), 90 mm in diameter, undergoes riping process and generates 51

[answerhappygod]

An approximately spherical shaped orange (k = 0.23 W/mK), 90 mm in diameter, undergoes

riping process and generates 5100 W/m3

of energy. If external surface of the orange is at 8oC,

determine:

i. temperature at the centre of the orange, and

ii. heat flow from the outer surface of the orange.