Practice question

Given: For an endothermic reaction with Δ H > 0 and Δ S < 0, under what condition is it spontaneous? These values define the system as per NCERT data. Formula: For Δ H > 0 and Δ S < 0, Δ G = Δ H - TΔ S > 0 always, so it is never spontaneous.. This is standard NCERT relation. Substitution & Calculation: Substituting values and simplifying step by step as per NCERT method. Result: The computed value matches expected outcome and confirms correct choice as per NCERT.