Help with chemistry Homework?

Posted on 2015-01-08 05:53:00 in Chemistry by SYMON

When thermal energy is transferred between two objects, it is transferred in which direction?

A. from a hotter object to a colder object

B. from a colder object to a hotter object

C. from a hot object to a an even hotter object

D. back and forth between hot and cold objects

Which describes how a microwave transfers heat to leftover mashed potatoes?

A. Radiation moves water molecules in the food, raising their total kinetic energy.

B. The hot oven comes in contact with the cold food and heat is transferred until both are at the same temperature.

C.Heated air currents circulate around the food, transferring their kinetic energy to the food particles.

D. Spinning the food on a turntable transfers kinetic energy to the food particles.

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