Which of the following is a correct expression for Gibbs Free Energy?
Practice Questions
1 question
Q1
Which of the following is a correct expression for Gibbs Free Energy?
ΔG = ΔH + TΔS
ΔG = ΔH - TΔS
ΔG = TΔS - ΔH
ΔG = ΔS - ΔH
The correct expression for Gibbs Free Energy is ΔG = ΔH - TΔS.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following is a correct expression for Gibbs Free Energy?
Solution: The correct expression for Gibbs Free Energy is ΔG = ΔH - TΔS.
Steps: 5
Step 1: Understand what Gibbs Free Energy (ΔG) is. It is a measure of the energy available to do work in a system at constant temperature and pressure.
Step 2: Identify the components of the Gibbs Free Energy equation. ΔG is the change in Gibbs Free Energy, ΔH is the change in enthalpy (total heat content), T is the temperature in Kelvin, and ΔS is the change in entropy (disorder).
Step 3: Recognize the relationship between these components. The equation shows how the change in enthalpy and the change in entropy affect the Gibbs Free Energy.
Step 4: Write down the correct expression for Gibbs Free Energy: ΔG = ΔH - TΔS.
Step 5: Confirm that this expression is widely accepted in thermodynamics.
