What does the term "sensible heat" refer to?

• A. Heat absorbed without temperature change
• B. Heat used to raise the temperature of a liquid
• C. Heat lost through condensation
• D. Heat used in chemical reactions

Answer: (B)

The term "sensible heat" refers to heat that is absorbed or released by a substance resulting in a change in temperature. This process occurs without a change in physical state. When we say heat is used to raise the temperature of a liquid, we are specifically talking about sensible heat. When heat is added to a liquid, its temperature increases until it reaches boiling point, indicating that sensible heat has been applied.

In contrast, latent heat would refer to heat absorbed or released during phase transitions, such as boiling or melting, without a change in temperature. This distinction helps clarify why the correct definition involves temperature change as a result of heat transfer. Therefore, the answer focusing on raising the temperature of a liquid accurately captures the essence of sensible heat.