What is the definition of sensible heat?

Sensible heat is defined as the heat that can be felt or measured with a thermometer. This type of heat is associated with a change in temperature of a substance without a change in its phase or state. For example, when you heat water from 20°C to 60°C, the increase in temperature represents the addition of sensible heat. This heat can be detected and quantified using a thermometer, which reflects the change in temperature directly.

The other options involve different concepts in thermodynamics. Heat that can be captured by a dehumidifier pertains to latent heat, which involves moisture removal and changes in moisture state rather than temperature change. The heat that can change the state of a substance refers to latent heat as well, specifically related to phase changes like melting or boiling. Heat during chemical reactions relates to the energy changes involved in breaking and forming bonds, which is not classified as sensible heat but rather as enthalpy change or heat of reaction.