Igcse Model Questions Vol1 2024 Biology Question 18
Practice objective / multiple choice question 18 from the 2024 Igcse Model Questions Vol1 Biology examination.
During a 30‑minute run, a person generates metabolic heat at a rate of \(800\ \text{W}\). The runner sweats at a rate of \(0.5\ \text{L\ h}^{-1}\). The latent heat of vapourisation of water is \(2.43\ \text{MJ\ kg}^{-1}\). Assuming the density of sweat is \(1.0\ \text{kg\ L}^{-1}\), calculate the amount of heat removed by evaporation during the run and state whether this evaporative cooling is sufficient to dissipate all the metabolic heat produced. If it is not sufficient, indicate how much heat (in MJ) remains to be dissipated by other mechanisms.
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This is Igcse Model Questions Vol1 2024 Biology Question 18. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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