Question

A student with a body temperature of 37°C holds a can of cold soda with a temperature of 18°C. The student is in a room with an air temperature of 22°C. Which statement best describes the flow of heat throughout the entire system?

a
Heat will flow from the student to the can.
b
Heat will flow from the air to the can and the student.
c
Heat will flow from the student to the can and the air, and from the air to the can.
d
Heat will flow from the student to the can and the air to the can.

Answer 1

c

Heat flows from higher temperature to lower temperature. Since 37°C (student) > 22°C (air) > 18°C (can), heat flows from the student to both the air and the can, and from the air to the can.