Does a solid have to melt and then boil before it turns into gas?

Answer 1

Yes, any liquid can become a gas (or any solid for that matter). The question is one of energy, as different substances have different temperatures at which molecules are heated enough where they become energetic enough to become a gas. Water is an excellent example of a liquid with a lower boiling point, whereas substances like lead must be heated much more for it to become first a liquid and then a gas.

Answer 2

Water boils under normal atmospheric pressure at 212°F. Imagine it at 221°F but NOT boiling in a pressurized container. If the pressure is quickly reduced, the 221°F water at normal pressure will now boil.

For another example, put water at room temperature into a vacuum chamber and begin removing the air. Eventually, the boiling temperature will fall below the water temperature and boiling will begin without heating.

Answer 3

Yes, it depends what boiling point u have it on. Liquid can turn into any state of matter (solid, liquid or gas) liquid can turn into gas when it has reached its boiling point. Liquid can turn into a solid by u putting it in a ice cube box and put water in the and freeze it.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 4

No, because bubbles are gases evaporating below the surface. If the liquid evaporates mostly on the top, there wouldn't be bubbles.