Question

Ms.markas takes a thermos bottle filled with hot coffee to work each day. The thermos bottle keeps the coffe hot by

A. Using a battery-powered heating element

B. Collecting solar heat energy

C. Recirculating hot air inside

D. Slowing heat transfer from the inside to the outside of the container

Answer 1

D is the answer. The thermo works as an insulator minimizing the heat loss to the environment.