Question

A student placed a beaker of salt water on a hot plate. He waited until the solution of saltwater began boiling, then he placed the beaker into an ice bath. In which direction does heat transfer?

A. from the dissolved salt into the boiling water
B. from the beaker of salt water into the ice bath
C. from the water to the surface of the hot plate
D. from the surrounding air into the beaker of salt water

Answer 1

The heat transfer in this situation is B) from the beaker of saltwater into the ice bath.

Step-by-step explanation:

The student placed a beaker of saltwater on a hot plate and waited for it to boil. Then, they placed the beaker into an ice bath. In this situation, heat transfer occurs from the beaker of saltwater into the ice bath.

When the saltwater boils, it gains heat energy from the hot plate, causing the water molecules to move faster and increase in temperature. When the beaker is placed in the ice bath, the colder temperature of the ice bath causes heat energy to transfer from the hot saltwater to the colder ice bath, resulting in a decrease in temperature of the saltwater.

Overall, the heat transfer in this situation is from the beaker of saltwater into the ice bath.