Practice question

Given: A gaseous reaction follows Rate = k p_A p_B with k = 0.04 atm^{-1 s^{-1, p_A = 0.5 atm, and p_B = 0.2 atm . What is the rate in atm s^{-1 ? These values define the system as per NCERT data. Formula: Rate = k p_A p_B = 0.04 × 0.5 × 0.2 = 0.004 .. 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.