一道 英文的

题目

一道 英文的
a person bring a (70℃) hot chocolate with a metal spoon to (20℃） room.
a) what happen to hot chocolate,spoon,and air?
b) Identify and describe the primary method od head energy transfer (conduction,convection,or radiation) between each of the following
the hot chocolate and the spoon
the hot chocolate and the air in the entire room.
c) what point will the net transfer of heat energy stop?

答案

a) the hot choclate conducts energy through the spoon that is emitted through the air in the form of heat radiation
b) the hot choclate and the spoon transfers energy through conduction ,and the the hot choclate and the entire rooms transfers energy throughout the form of radiation
c) The net transfer of heat energy will stop once they reach the point of Thermal Equilibrium