NDA Chemistry
Thermodynamics Equilibrium Redox — Quiz
20 Questions · No Negative Marking
Question 1
Gibbs free energy (ΔG = ΔH - TΔS) predicts spontaneity. A reaction is spontaneous when:
AΔH < 0 regardless of ΔS
BΔG < 0 — which can occur when
CΔS = 0 and ΔH < 0
DΔG > 0 always
Question 2
The relationship between equilibrium constant (Kc) and Gibbs free energy is:
AΔG° = RT ln Kc
BΔG° = -RT ln Kc — large
CΔG° = Kc / RT
DΔG° = -Kc
Question 3
For the reaction: N₂(g) + 3H₂(g) ⇌ 2NH₃(g), the Kp and Kc are related by:
AKp = Kc under all conditions regardless of the reaction
BKp = Kc(RT)^Δn where Δn is the change in moles of gaseous species
CKp = Kc + Δn as an additive correction for gas moles in the reaction
DKp = Kc divided by (RT)^Δn for all gas-phase equilibrium reactions
🔒
Unlock the Full Quiz
Get all 20 questions with answer options, instant scoring, and detailed explanations for every question — plus full access to all chapters, PDFs, and mock tests.
Unlock Full Access →
← Back