The reaction A+ 2B+ C equals products has a rate law rate= K [A]2 [B]. by what factor will the reaction rate changes B is tripled

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.