boiling point
No, Gas--->liquid (condensation). Solid---->liquid (melting)
Changes in phases of matter are primarily caused by variations in temperature and pressure. Increasing temperature can cause a substance to change from a solid to a liquid (melting) and from a liquid to a gas (evaporation). Conversely, decreasing temperature can cause a substance to change from a gas to a liquid (condensation) and from a liquid to a solid (freezing). Changes in pressure can also impact the phases of matter, such as in the case of sublimation (transition from solid to gas) and deposition (transition from gas to solid).
Solid, liquid, and gas are the three states of matter that a substance can undergo as it changes temperature and pressure. Solid to liquid is melting, liquid to gas is vaporization, and gas to liquid is condensation.
Iodine
When a substance changes from a solid to a gas, called sublimation, it quickly becomes less dense.
Sublimation is the phase change in which a substance changes from a solid to a gas or vapor without first becoming a liquid. This process occurs when the pressure and temperature conditions allow the solid to transition directly into a gas.
Deposition is the phase change in which a substance changes directly from a gas to a solid without passing through the liquid phase. It occurs when the temperature of a gas decreases to such an extent that particles lose energy and come together to form a solid.
No, when a solid melts, it changes into a liquid, not a gas. Melting is the process by which a substance transitions from a solid to a liquid state due to an increase in temperature. The transition from a liquid to a gas is called vaporization.
Sublimation is the process in which a substance changes directly from solid to gas phase without passing through the liquid phase. This occurs when the vapor pressure of the solid exceeds its atmospheric pressure at a certain temperature. Examples include dry ice (solid carbon dioxide) and mothballs (solid naphthalene) sublimating at room temperature.
It is very interesting to know that camphor is solid at room temperature. However if it is heated even slightly, it changes into gaseous state.
Iodine for example.
The phase of a substance is determined by its temperature and pressure, as well as the intermolecular forces present within the substance. Changes in temperature and pressure can cause a substance to transition between solid, liquid, and gas phases.