Avogadro's law states that the volume occupied by an ideal gas is proportional to the number of moles (or molecules) present in the container. This gives rise to the molar volume of a gas, which at STP is 22.4 dm3 (or litres).
So far, I noticed others bring the water to a boil or simmer with whole chicken in the pot. With normal cook time 45 minutes to well over a hour. Your way indicates to infuse your stock then bring to a boil and only then, add the chicken.
Cook the chicken until internal temperature reaches 170 degrees F. Large chicken breast 8-10 oz. 15 minutes on high coal heat (no black coals, ashed red coals), flip, 15 minutes on the other side. Chicken breast should be cooked until the internal temperature is 165 F no matter what way the chicken is cooked.