A nude body at a room temperature of 21°C (70°F)loses most of its heat by which process?

Question

A nude body at a room temperature of 21°C (70°F)loses most of its heat by which process?

Quizplus · Accepted Answer

Radiative heat loss is the predominant mechanism for a nude body at room temperature (21°C or 70°F) to lose heat to its surroundings. This is because the temperature of the surroundings is lower than the body temperature, and heat always flows from a hotter object to a cooler one. Convection and forced convection may play a role if there is air movement, but they are not significant at still air conditions. Evaporation may also contribute to heat loss if the skin is wet, but it is not the most important mechanism for a dry nude body. Conduction is not significant either, as the body is not in direct contact with a colder object.

A Nude Body at a Room Temperature of 21°C (70°F)loses