Power Plant Engineering
A pressurized water reactor employs pressurizes for the following application

To Supply high pressure steam
To provide sub cooled water at high pressure
To increase pressure of water in primary circuit
To maintain constant pressure in primary circuit under varying load

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Power Plant Engineering
In nuclear fission

The electrons of the element change
None of the listed here
The original elements change into completely different elements
The molecules rearrange themselves to form other molecules

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