Practice question

Given: A reaction’s rate increases by a factor of 16 when [A] is doubled and [B] is doubled. If the order with respect to A is 2, what is the order with respect to B? These values define the system as per NCERT data. Formula: Rate = k[A]^n[B]^m, n = 2, 16 = 2² × 2^m. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: 16 = 4 × 2^m, 2^m = 4, m = 2 . 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.