If the true widths of the spectral lines emitted by the hollow cathode lamp are on the order of 0.02 - 0.05 Å, what causes your measured Cu line to appear so broad?

The boiling point of liquids is very high what does it indicate

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?