Why the boiling point for different amount of water is the same?

Answer 1

More water, more molecules of water being frictioned by the heating source, thus generating the same boiling point. Boiling point of a substance is not related to the amount, but to its molecular structure.

Answer 2

The temperature of a substance rises only until it begins to change phase, that is to change from solid to liquid, liquid to solid, liquid to gas, or gas to liquid etc.

when you add heat to water, it will heat up until it reaches 100 degrees celsius. At this point, any additional heat you add will work towards turning the water into vapour. Only after this happens will adding more heat start to raise the temperature again. So vapour, immediately after evaporating, will still be 100 degrees celsius, even though you added heat, that heat went towards evaporation instead of increasing temperature. Now that its a gas, adding heat will increase the temperature past 100 degrees.

Answer 3

The boiling point of water remains constant at 100 degrees Celsius (212 degrees Fahrenheit) at sea level because it is the temperature at which the vapor pressure of water equals the atmospheric pressure. This means that no matter how much water you have, it will boil at the same temperature as long as the pressure remains constant.

Answer 4

Evaporation and boiling are similar because both of them allow water to go through a physical change and have the water turn into a gas, by gaining energy.

Answer 5

No, it's not. The boiling point is much higher then the condensation point because a lot of energy is required to break connections between molecules in either liquid or solid.

Answer 6

Because they are both at the same atmospheric pressure.

Answer 7

Condensation is the opposite of evaporation.