Sulfur Recovery Daily Question 2018.9.24

The process by which a substance changes from a liquid state to a gas state is called vaporization, while the reverse process, from a gas state to a liquid state, is called liquefaction. The ways of vaporization are evaporation and boiling, while the way of liquefaction is condensation. Evaporation is a phenomenon in which vaporization occurs only at the surface of a liquid. It can occur at any temperature and any pressure. The higher the temperature and the greater the exposed surface area, the lower the vapor density of the substance near the liquid surface, resulting in faster evaporation. Under the same conditions, various liquids evaporate at different rates; for example, alcohol evaporates faster than water, and fresh water evaporates faster than seawater. During evaporation, the liquid must absorb heat from its surroundings. Boiling is a special form of evaporation; it is a phenomenon in which vaporization occurs simultaneously from both the interior and the surface of a liquid, and it can take place only under certain temperatures and pressures. The temperature at which a liquid boils is called its boiling point. The boiling point is related to pressure; as pressure decreases, the boiling point drops ； As pressure increases, the boiling point rises. At the same pressure, different liquids have different boiling points; for example, at one atmosphere of pressure, water boils at 100°C, while mercury boils at 357°C. When boiling, the liquid continuously absorbs heat, but its temperature remains constant. Condensation is the process by which steam turns into a liquid state. Heat is released during condensation. Lowering the temperature of steam or increasing its pressure will cause it to condense. If there is already liquid present in the steam, condensation usually occurs on its surface ； In the absence of liquid, droplets often form around nucleation sites.

The process by which a substance changes from a liquid state to a gas state is called vaporization, while the reverse process, from a gas state to a liquid state, is called liquefaction. The ways of vaporization are evaporation and boiling, while the way of liquefaction is condensation. Evaporation is a phenomenon in which vaporization occurs only at the surface of a liquid. It can occur at any temperature and any pressure. The higher the temperature and the greater the exposed surface area, the lower the vapor density of the substance near the liquid surface, resulting in faster evaporation. Under the same conditions, various liquids evaporate at different rates; for example, alcohol evaporates faster than water, and fresh water evaporates faster than seawater. During evaporation, the liquid must absorb heat from its surroundings. Boiling is a special form of evaporation; it is a phenomenon in which vaporization occurs simultaneously from both the interior and the surface of a liquid, and it can take place only under certain temperatures and pressures. The temperature at which a liquid boils is called its boiling point. The boiling point is related to pressure; as pressure decreases, the boiling point drops ； As pressure increases, the boiling point rises. At the same pressure, different liquids have different boiling points; for example, at one atmosphere of pressure, water boils at 100°C, while mercury boils at 357°C. When boiling, the liquid continuously absorbs heat, but its temperature remains constant. Condensation is the process by which steam turns into a liquid state. Heat is released during condensation. Lowering the temperature of steam or increasing its pressure will cause it to condense. If there is already liquid present in the steam, condensation usually occurs on its surface ； In the absence of liquid, droplets often form around nucleation sites.

1) Vaporization: The process of changing from a liquid to a vapor is called vaporization. 2) Evaporation: The process of vaporization that occurs at the surface of a liquid is called evaporation. 3) Boiling: When heat is applied to a liquid, its temperature rises, and at the same time the rate of evaporation increases. At a certain temperature, vaporization begins to occur throughout the entire mass of the liquid; this temperature depends on the properties of the liquid and the pressure acting on it. The intense vaporization process of bubbles forming inside this liquid is called boiling. 4) Condensation: The process in which steam releases heat and turns into a liquid is called the condensation process. Condensation is the reverse process of vaporization, occurring at certain pressures and temperatures; the liquid formed as a result of condensation is called condensed liquid.

The process of a liquid turning into vapor is called vaporization. Vaporization can be divided into two types: evaporation and boiling. Vaporization that occurs only at the surface of the liquid is called evaporation, while when the temperature reaches a certain level, vapor bubbles begin to form on the walls of the container as well as within the liquid; this phenomenon is called boiling. The process of converting steam into a liquid is called condensation.

(1) Vaporization: The process of changing from a liquid to a vapor is called vaporization. (2) Evaporation: The process of vaporization that occurs at the surface of a liquid is called evaporation. (3) Boiling: When heat is applied to a liquid, its temperature rises, and at the same time the rate of evaporation increases. At a certain temperature, vaporization begins to occur throughout the entire mass of the liquid; this temperature depends on the properties of the liquid and the pressure acting on it. The intense vaporization process of bubbles forming inside this liquid is called boiling. (4) Condensation: The process in which steam releases heat and turns into a liquid is called the condensation process. Condensation is the reverse process of vaporization, occurring at certain pressures and temperatures; the liquid formed as a result of condensation is called condensed liquid.

The process by which a substance changes from a liquid state to a gas state is called vaporization, while the reverse process, from a gas state to a liquid state, is called liquefaction. The ways of vaporization are evaporation and boiling, while the way of liquefaction is condensation. Evaporation is a phenomenon in which vaporization occurs only at the surface of a liquid. It can occur at any temperature and any pressure. The higher the temperature and the greater the exposed surface area, the lower the vapor density of the substance near the liquid surface, resulting in faster evaporation. Under the same conditions, various liquids evaporate at different rates; for example, alcohol evaporates faster than water, and fresh water evaporates faster than seawater. During evaporation, the liquid must absorb heat from its surroundings. Boiling is a special form of evaporation; it is a phenomenon in which vaporization occurs simultaneously from both the interior and the surface of a liquid, and it can take place only under certain temperatures and pressures. The temperature at which a liquid boils is called its boiling point. The boiling point is related to pressure; as pressure decreases, the boiling point drops ； As pressure increases, the boiling point rises. At the same pressure, different liquids have different boiling points; for example, at one atmosphere of pressure, water boils at 100°C, while mercury boils at 357°C. When boiling, the liquid continuously absorbs heat, but its temperature remains constant. Condensation is the process by which steam turns into a liquid state. Heat is released during condensation. Lowering the temperature of steam or increasing its pressure will cause it to condense. If there is already liquid present in the steam, condensation usually occurs on its surface ； In the absence of liquid, droplets often form around nucleation sites.

The process of changing from a liquid to a vapor is called vaporization. The process of vaporization that occurs on the surface of a liquid is called evaporation. When heat is applied to a liquid, its temperature rises, and at the same time the rate of evaporation increases. At a certain temperature, vaporization begins to occur throughout the entire mass of the liquid; this temperature depends on the properties of the liquid and the pressure acting on it. The intense vaporization process of bubbles forming inside this liquid is called boiling. The process in which steam releases heat and turns into a liquid is called the condensation process. Condensation is the reverse process of vaporization, occurring at certain pressures and temperatures; the liquid formed as a result of condensation is called condensed liquid.

(1) Vaporization: The process of changing from a liquid to a vapor is called vaporization. (2) Evaporation: The process of vaporization that occurs at the surface of a liquid is called evaporation. (3) Boiling: When heat is applied to a liquid, its temperature rises, and at the same time the rate of evaporation increases. At a certain temperature, vaporization begins to occur throughout the entire mass of the liquid; this temperature depends on the properties of the liquid and the pressure acting on it. The intense vaporization process of bubbles forming inside this liquid is called boiling. (4) Condensation: The process in which steam releases heat and turns into a liquid is called the condensation process. Condensation is the reverse process of vaporization, occurring at certain pressures and temperatures; the liquid formed as a result of condensation is called condensed liquid.

Vaporization: The process of transformation from a liquid to vapor. Evaporation: The process of vaporization that occurs at the surface of a liquid. Boiling: When heat is applied to a liquid, its temperature rises and at the same time the rate of evaporation increases. At a certain temperature, vaporization begins to occur throughout the entire mass of the liquid; this temperature depends on the properties of the liquid and the pressure acting on it. The intense vaporization process of bubbles forming inside this liquid. Condensation: The process in which steam releases heat and turns back into a liquid is called the condensation process. Condensation is the reverse process of vaporization; it occurs at certain pressures and temperatures, and the liquid that results from condensation

(1) Vaporization: The process of changing from a liquid to a vapor is called vaporization. (2) Evaporation: The process of vaporization that occurs at the surface of a liquid is called evaporation. (3) Boiling: When heat is applied to a liquid, its temperature rises, and at the same time the rate of evaporation increases. At a certain temperature, vaporization begins to occur throughout the entire mass of the liquid; this temperature depends on the properties of the liquid and the pressure acting on it. The intense vaporization process of bubbles forming inside this liquid is called boiling. (4) Condensation: The process in which steam releases heat and turns into a liquid is called the condensation process. Condensation is the reverse process of vaporization, occurring at certain pressures and temperatures; the liquid formed as a result of condensation is called condensed liquid.