Practice question

Given: The rate law of a reaction is Rate = k[A][B] . If both [A] and [B] are increased by a factor of 3, by what factor does the rate increase? These values define the system as per NCERT data. Formula: Initial rate = k[A][B], new rate = k(3[A])(3[B]) = 9k[A][B]. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: Factor = 9. 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.