In Boulder, CO, the altitude is around 6000 feet, and the atmospheric pressure i
ID: 1717774 • Letter: I
Question
In Boulder, CO, the altitude is around 6000 feet, and the atmospheric pressure is about (0.8 Atm or 80.8 kPa) rather than ~1 Atm as it would be at sea level. Considering the three forms of heat transfer, would you expect to feel warmer or cooler in Boulder compared to Dayton (assume 1 Atm or 101 kPaatmospheric pressure) if you spent 15 minutes outside with no jacket and the air temperature was 25 °F? Give a detailed explanation to justify your answer.?
Problem 1: In Boulder, CO, the altitude is around 6000 feet, and the atmospheric pressure is about (0.8 Atm or 80.8 kPa) rather than 1 Atm as it would be at sea level. Considering the three forms of heat transfer, would you expect to feel warmer or cooler in Boulder compared to Dayton (assume 1 Atm or 101 kPa atmospheric pressure) if you spent 15 minutes outside with no jacket and the air temperature was 25 ? Give a detailed explanation to justify your answer.Explanation / Answer
Human body looses heat from the body by sweating. sweat is given out from the pores, and that sweat evaporates from the skin, taking away the latent heat of vaporization from the body, cooling the body. the sweat is evaporated, and it is convective form of heat transfer.
Water boils at lower tempreture at high altitude, because of reduced atmospheric pressure.
combine above two facts to get answer to your question.
since the water will evaporate at lower tempreture at high altitude, less heat will be taken away per unit/gram of sweat. Hence body will need to sweat more. Hence you will feel hot at high altitude, because of more sweating
Assumptions - The atmospheric temperature at both places is same/nearly equal.