Question
Download Solution PDFThe heat content of a system is known as -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Heat Content of a System
- The heat content of a system refers to the total energy stored within the system that can be released as heat.
- In thermodynamics, this heat content is represented by a term called "enthalpy" (H).
- Enthalpy is a state function that represents the total energy of a system, including internal energy (U) and the energy required to displace the environment (pressure-volume work): \(H = U + PV\).
EXPLANATION:
- Option 1: Entropy (S) measures the degree of disorder or randomness in a system, not the heat content.
- Option 2: Free energy (G) is the energy available to do work, not specifically the heat content.
- Option 3: Internal energy (U) represents the total energy within a system, but it does not include the energy associated with pressure-volume work.
- Option 4: Enthalpy (H) represents the total heat content of a system, which includes internal energy and pressure-volume energy.
The correct answer is (4) Enthalpy.
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