Real power is the energy dissipated by the resistor in one second. Joules per second.
What is reactive power then?
Is it the energy being stored in inductor and capacitor in one second?
If we then connect inductor and capacitor having stored energy with a resistor, then would the rate of energy dissipation by resistor and the rate of energy supplied by inductor or capacitor be the same?
What is reactive power then?
It is a power travelling back and forth from the source to the load.
Is it the energy being stored in inductor and capacitor in one second?
$$P=\dfrac{dE}{dt}$$
If we talk about the power, then it is not. But there is a relation between power and energy, not necessarily it has to be 1 second period.
If we then connect inductor and capacitor having stored energy with a resistor, then would the rate of energy dissipation by resistor and the rate of energy supplied by inductor or capacitor be the same?
Of course, if the source is turned off = short circuit, the energy from inductor or capacitor will be dumped in the resistor.
Reactive power is what is loading your supply lines without producing results. Apparent power is RMS voltage times RMS current while actual power transfered is the time average of the instantaneous product of voltage times current. The difference is reactive power. It heats the wires and trips fuses but ends up (minus transport losses) where it started.
What to call the power balance in an RLC combination depends on just where you draw or rather cut the line to measure power transfer.
