【Q&A】June 3, 2017

The heat absorbed or released by a unit weight of a pure substance during a phase change, without a change in temperature, is called latent heat. The heat absorbed or released by a pure substance due to a change in temperature, under conditions where no phase change or chemical reaction occurs, is called sensible heat.

The heat absorbed or released by a unit weight of a pure substance during a phase change, without a change in temperature, is called latent heat. The heat absorbed or released by a pure substance due to a change in temperature, under conditions where no phase change or chemical reaction occurs, is called sensible heat.

The heat absorbed or released by a unit weight of a pure substance during a phase change, without a change in temperature, is called latent heat. The heat absorbed or released by a pure substance due to a change in temperature, without any phase changes or chemical reactions occurring, is called sensible heat.

The heat absorbed or released during the heating or cooling of a substance is called sensible heat. The heat absorbed or released during vaporization or condensation is called latent heat.

The heat absorbed or released during the heating or cooling of a substance is called sensible heat. The heat absorbed or released during vaporization or condensation is called latent heat.

The heat absorbed or released by a unit weight of a pure substance during a phase change, without a change in temperature, is called latent heat. The heat absorbed or released by a pure substance due to a change in temperature, without any phase changes or chemical reactions occurring, is called sensible heat.

Sensible heat, also known as liquid heat, refers to the phenomenon where, when water is heated, an increase in heat input results in a corresponding rise in the water’s temperature; in other words, the amount of heat added can be directly reflected by the water temperature. Latent heat: That is, the heat absorbed when water at a certain pressure is further heated to turn into steam at the same saturation temperature is known as latent heat.

Sensible heat is used to heat solid, liquid, or gaseous substances; as long as their state remains unchanged, adding heat causes the temperature of the substance to rise. The amount of heat added can be reflected in the temperature increase. Heat that causes a change in temperature without altering the state of the substance is known as sensible heat. If liquid water is heated, as long as it remains in a liquid state, its temperature rises ； Therefore, sensible heat only affects the change in temperature and does not cause a change in the state of matter. For example, in a computer room, the computers or program-controlled switches generate a lot of heat, and this is considered sensible heat. When liquid water is heated, its temperature rises. When it reaches the boiling point, even though heat continues to be added, the temperature of the water does not increase any further and remains at the boiling point. The heat added is used solely to convert the water into steam, that is, from a liquid state to a gas state. The heat that causes a change in the state of matter (also known as a phase change) without altering the temperature of the substance is called latent heat. Heat such as that generated in computer rooms, from the bodies of staff members, and the humidity contained in the air brought in through ventilation is referred to as latent heat

Heat that causes a change in the temperature of a substance without altering its state is called sensible heat. Such as heating liquid water. The heat that causes a change in the state of matter without changing its temperature (also known as a phase change) is called latent heat

In my understanding, sensible heat does not involve phase changes; it is what is commonly referred to as heat energy. Latent heat, on the other hand, is the heat released during the transition from one state to another as part of the heating process. I’m not sure if this is correct. ,