Question

For an isobaric process, the heat transferred is equal to the change in .............. of the system.

• A. enthalpy
• B. entropy
• C. Helmholtz free energy
• D. Gibbs free energy

Hint:

For isobaric processes, the heat added to the system corresponds to the change in enthalpy. This is a key concept in thermodynamics when dealing with constant pressure processes.

Answer 1

The Correct Option is A

Step 2: Analyze the options
 

• Option (A): Correct — The heat transferred in an isobaric process is equal to the change in enthalpy, as shown by the equation above.
• Option (B): Incorrect — Entropy is a measure of disorder in a system, but it does not directly relate to the heat transfer in an isobaric process.
• Option (C): Incorrect — Helmholtz free energy is related to a system at constant temperature and volume, not pressure.
• Option (D): Incorrect — Gibbs free energy is associated with spontaneous processes, but not specifically with heat transfer in an isobaric process.

Step 3: Conclusion
Thus, the correct answer is Option (A), as heat transfer in an isobaric process is equal to the change in enthalpy.