Specific heat at constant pressure (cₚ) is always greater than specific heat at constant volume (cᵥ) because:
✓ Correct Answer: Option B
At constant P, the system does PdV work on expansion, requiring extra heat. cₚ − cᵥ = R for ideal gases.
At constant P, the system does PdV work on expansion, requiring extra heat. cₚ − cᵥ = R for ideal gases.