The temperature at which the vapor pressure of a substance equals the external atmospheric pressure is called boiling point. This phenomenon occurs under certain conditions of temperature and pressure. It varies depending on the specific properties of the substance.
see i was trying to figure out the answer but i didn't understand it so i took the time to research and work it out but i still didn't understand i found one that was close to it and i got the same one as the other person which is D but idk if it is that type of question if it is than it is d if not then idk
