A person having skin of surface area 1. 85 m² and temperature 30. 0°C is resting in an insulated room where the ambient air temperature is 21. 0°C. In this state, a person gets rid of excess heat by radiation. You can assume the emissivity of the person's skin is 1. 00.
a) How much net heat does the person radiate into the room every second? (Remember that the surrounding room air is radiating energy back to the person, so account for this in your calculation)
b) By how much is the entropy in the room changing each second as a result of the heat flow calculated in part (a)?