based on your answer to (1b), how many liters of water could you boil or would you need to condense for 1b to proceed assuming the heat of vaporization of pure water is 40.66 kj/mol

thermal energy is the answer

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.