For the reaction 4H2(g) + 2O2(g) ⇌ 4H2O(g), what is the change in Gibbs free ene
Practice Questions
Q1
For the reaction 4H2(g) + 2O2(g) ⇌ 4H2O(g), what is the change in Gibbs free energy at equilibrium?
Positive
Negative
Zero
Depends on temperature
Questions & Step-by-Step Solutions
For the reaction 4H2(g) + 2O2(g) ⇌ 4H2O(g), what is the change in Gibbs free energy at equilibrium?
Step 1: Understand what Gibbs free energy (ΔG) is. It tells us if a reaction can happen spontaneously.
Step 2: Know that at equilibrium, the forward and reverse reactions happen at the same rate.
Step 3: Realize that when a reaction is at equilibrium, there is no net change in the concentrations of reactants and products.
Step 4: Remember that at equilibrium, the change in Gibbs free energy (ΔG) is zero, meaning the system is stable.
Gibbs Free Energy – Gibbs free energy (ΔG) is a thermodynamic potential that measures the maximum reversible work obtainable from a thermodynamic system at constant temperature and pressure.
Equilibrium Condition – At equilibrium, the forward and reverse reactions occur at the same rate, and the system's Gibbs free energy change (ΔG) is zero.
