How do you measure the heat output of a microwave oven using say liter water and recording start end temperature over one minute period?

* Microwave oven

* Liter of water

* Microwave-safe container

* Thermometer

Instructions:

1. Place the liter of water in the microwave-safe container and put it in the microwave oven.

2. Set the microwave oven to the highest power setting and heat the water for one minute.

3. Remove the container from the microwave oven and immediately measure the temperature of the water.

4. Subtract the initial temperature of the water from the final temperature to find the temperature increase.

5. Multiply temperature increase by the mass of the water (1 kg) and the specific heat capacity of water (4186 J/kg-K) to find the energy absorbed by the water:

$$Q = mc_p \Delta T$$

Where:

Q: Energy absorbed by water

m: Mass of the water

c_p: specific heat capacity of the water

\(\Delta T\): Temperature increase of water

6. The energy absorbed by the water is equal to the heat output of the microwave oven for one minute.

Note: Be careful when handling the hot water. Use oven mitts or tongs to avoid burns.