I think there would be three answers from the choices. The effects that can occur when heat energy is added to a system would be that increase in temperature, <span>change of state and phase change Hope this answers the questions. Have a nice day.</span>
Anode
Explanation:
The anode in the gas discharge tube used by Thomson in his experiment was the positively charged electrode.
Using the gas discharge tube, Thomson made the remarkable discovery of cathode rays.
The rays moves from the negatively charged cathode to the positively charged anode. This indicated that the rays carry positive charges.
Some parts of the tube are:
- Cathode - negatively charged electrode
- Power source
- Gas at low pressure
- Outlet to vacuum pump
Learn more:
cathode brainly.com/question/12747250
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I believe it would be weight. mass never changes.
