Difference???

Question

The boiling point of xenon is -107.10C. The melting point of xenon is -111.90C. What is the difference between the boiling point of xenon and the melting point of xenon?

The answer is positive right?

Answer 1

The "difference" means you need to subtract. Between mean you need to take the temperatures in order listed.

The boiling point is -107.10 °C
The melting point is -111.90 °C

The difference is:

-107.10 - (-111.90) = - 107.10 + 111.90 = + 4.80 °C

Yes this is positive.

Answer 2

The boiling point of a substance is the temperature at which it can change its state from a liquid to a gas throughout the bulk of the liquid at a given pressure. A liquid may change to a gas at temperatures below the boiling point through the process of evaporation. Any change of state from a liquid to a gas at boiling point is considered vaporization. However, evaporation is a surface phenomenon, in which only molecules located near the gas/liquid surface could evaporate. Boiling on the other hand is a bulk process, so at the boiling point molecules anywhere in the liquid may be vaporized, resulting in the formation of vapor bubbles.And The melting point of a crystalline solid is the temperature at which it changes state from solid to liquid. When considered as the temperature of the reverse change from liquid to solid, it is referred to as the freezing point.

and the answer to your question is exactly positive 4.8 ;)

Answer 3

-107.10c-(-111.90c)=4.8 c always positive