Which energy transformations occur when a candle burns?

Chemical energy into Thermal energy and Light Energy

Explanation:

When candle is burnt then its wax which is a having chemical potential energy in it will burn and convert its chemical potential energy into light energy and thermal energy.

So here the wax will melt down after burning and few of its part will evaporate and convert its energy into thermal energy and light energy both.

So overall if we write energy transformation in this

Chemical potential energy of wax = Light Energy + Thermal energy

2.2

Explanation:

= Heat rejection in the condenser = 3300 kJ/h

= Heat gain to the food department = 4800 kJ/h

Power output is given by

COP of a refrigerator is given by

The COP of the refrigerator is 2.2