Practice question

Given: How much heat is required to raise the temperature of 0.5 moles of neon by 25 K at constant volume? (R = 8.31 J mol^{-1 K^{-1) These values define the system as per NCERT data. Formula: For monatomic gas, C_v = 3/2 R. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: Q = μ C_v Δ T = 0.5 × 3/2 × 8.31 × 25 = 155.8125 J approx 155.8 J. Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kg⁻¹ K⁻¹, m/s², 10⁻⁵ are properly used as per NCERT.