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Que. An 8 cm diameter orange, approximately spherical in shape, undergoes ripening process and generates 18000 k J/m³ hr of energy. If external surface of the orange is at 6.5 degree Celsius, find out the temperature at the center of the orange. Take thermal conductivity = 0.8 k J/ m hr degree for the orange material
a. 13.5 degree Celsius
b. 12.5 degree Celsius
c. 11.5 degree Celsius
d. 10.5 degree Celsius
Correct Answer:12.5 degree Celsius
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