I don't think I want to go into a lot of detail here, but the answer is
"sometimes true and sometimes false". I believe it depends on the
original difference between XC and XL, before XC began to change.
Yes, of course! by it's definition the potential energy is an energy that particle have in order to obtain kinetic energy. Or simply an energy to make some movement.
95 degrees Fahrenheit in Celsius scale is 35 degrees Celsius