physics

 

Consider the scenario presented in the last question on the homework before the quiz.  For the period of time when the heat pump is in dynamic equilibrium and the food is still cooling, which of the following statements on energy conservation in the refrigerator chain of reactions are true, and which are false? Use the following energy diagram of the interaction chain as a reference.

1.  

The sum of the energy inputs to the heat pump from the power plant and from the cooling soda in the fridge is equal to the sum of the thermal energy increase in the surroundings and the energy increase in the sound receivers.