Why do tap waters do not reach 100 degrees Celsius when boiled?
Mercury, the closest planet to the sun, fluctuates in temperature more than any other planet. During the day, its temperature can reach 800 degrees Fahrenheit (430 degrees Celsius), and during the night, its temperature can drop to -280 degrees Fahrenheit (-170 degrees Celsius). This is a drop of about 1,080 degrees Fahrenheit (600 degrees Celsius).
Lava has a variety of temperatures, depending on the type of lava expelled. The temperatures can range from 700 degrees Celsius (1,300 degrees Fahrenheit), to 1,200 degrees Celsius (2,200 degrees Fahrenheit), though in the distant past there is speculation that the temperature of lava has reached a whopping 1,600 degrees Celsius (2,900 degrees Fahrenheit). Fortunately, the earths mantle isn't hot enough for lava to reach that temperature anymore.