Gce Model Questions Vol1 2022 Biology Question 39
Practice objective / multiple choice question 39 from the 2022 Gce Model Questions Vol1 Biology examination.
During exposure to a cold environment a person loses heat by radiation and convection. The skin temperature is 35 °C and the ambient temperature is 20 °C. The body surface area is 1.8 m², skin emissivity is 0.95 and the Stefan‑Boltzmann constant is \(\sigma = 5.67\times10^{-8}\,\text{W·m}^{-2}\text{K}^{-4}\). The convective heat‑transfer coefficient is \(h = 10\,\text{W·m}^{-2}\text{K}^{-1}\). Calculate the total heat loss in kilojoules per hour.
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This is Gce Model Questions Vol1 2022 Biology Question 39. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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