Practice question

Given: What is the molar specific heat capacity at constant pressure for a diatomic gas if C_v = 5/2 R and R = 8.3 J mol^{-1 K^{-1 ? These values define the system as per NCERT data. Formula: C_p - C_v = R. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: C_p = C_v + R = 5/2 R + R = 7/2 R . C_p = 7/2 × 8.3 = 29.05 J mol^{-1 K^{-1 . 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.