How does the way water changes from one state to another compare to the way other substances change?

Question

Anyway, this question has been yanking on me for a while. Any helpful, easy-understanding answers are appreciated. ^_^

This is under "Matter" by the way from this worksheet. Don't know that will help but yeah.

Thanks. :D

Answer 1

Matter comes in the forms of solid, liquid, and gas. These are called "phases" of matter. Solid water (ice) turns liquid at O degrees centigrade, and liquid water turns to gas at 100 degrees centigrade. Rocks are solid even at 100 degrees, they melt at extremely high temperatures, and vaporize at even higher temperatures. Ethyl alcohol, on the other hand, has to be much colder than 0 degrees before it turns solid, and it boils at a lower temperature than 100 degrees. Each substance has its own melting and vaporising temperatures, you can probablycome up with more examples on your own. Carbon dioxide, when solid (dry ice), does not melt but vaporizes directly from the solid.

Answer 2

Water has one or two unusual properties. Only a few other substances expand as they freeze like ice does. And oxygen is a group 6 element. H2O is liquid at room temperature, but the analogous compounds of hydrogen with the other group 6 elements, H2S, H2Se and H2Te are all gases with very low boiling points. And water has unusually large latent heats of melting and vapourisation. In other words, when steam condenses or water freezes, a large amount of heat is released. Also, liquid water has an unusually large specific heat; it takes a lot of heat to raise its temperature compared with most substances.

Answer 3

Every element has got different melting point and different evaporation point. The state of any mass can be changed to all the three states. Only thing that the amount of heat and temperature differs for each element. We have taken the specific heat of the water as one. That is the amount of heat required to raise the temperature of water by one degree. But latten heat is required to change the state of mass without raising its temperature. .

Answer 4

Water and metal can be made into a liquid or solid. I can't think of any other substances that can be compared to water.