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What is the Difference Between Sensible Heat and Latent Heat?

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Last updated date: 28th Sep 2024
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Hint :Heat is energy transferred to or from a thermodynamic system by means other than thermodynamic work or matter transfer. Heat is defined by a variety of energy transfer processes. Heat transmission, like thermodynamic work, is a multi-system process rather than a characteristic of a single system. Energy transmitted as heat contributes to changes in the system's cardinal energy variable of state, such as internal energy or enthalpy, in thermodynamics.

Complete Step By Step Answer:
Sensible HeatLatent Heat
Sensible heat is heat transferred by a body or thermodynamic system that affects the temperature of the body or system, as well as some macroscopic variables of the body or system, but leaves other macroscopic variables of the body or system, such as volume or pressure, unaltered.During a constant-temperature process — generally a first-order phase transition — latent heat is energy produced or absorbed by a body or a thermodynamic system.
The word is used to distinguish itself from latent heat, which refers to the quantity of heat exchanged that is concealed and occurs without a change in temperature. Latent heat is energy that is given or withdrawn in a concealed form to affect the condition of a substance without changing its temperature.
When ice melts, for example, the temperature of the system comprising the ice and the liquid remains constant until all of the ice has melted. Phase transitions, such as a material condensing or vaporising at a particular temperature and pressure, are examples of latent heat of fusion and latent heat of evaporation.

Sensible and latent heat aren't different types of energy. Instead, they explain heat exchanges under conditions that are described in terms of their impact on a material or a thermodynamic system. When energy is transported in nature, both perceptible and latent temperatures are detected in numerous processes. The phase changes of atmospheric water vapour, primarily evaporation and condensation, are related with latent heat, which is measured at constant temperature, whereas sensible heat immediately influences the temperature of the atmosphere.

Note :
Many energy transfer mechanisms in nature exhibit both sensible and latent temperatures. Latent heat is associated with changes in the phase of atmospheric or ocean water, such as vaporisation, condensation, freezing, or melting, whereas sensible heat is energy transferred that is visible in changes in the temperature of the atmosphere, ocean, or ice, but not with phase changes, though it is associated with pressure and volume changes.