The initial rates for gaseous reaction A+3B→AB3 are given beloworder of reaction is - Sri Chaitanya Infinity Learn Best Online Courses for NCERT Solutions, CBSE, ICSE, JEE, NEET, Olympiad and Class 6 to 12

With respect to A, no change in the rate if the concentration of A is doubled. So the order of ‘A’ is zero.

With respect to B, change in the rate becomes four times $(2^{2}) = \frac{0.008}{0.002} = 4$ if the concentration of B is doubled.

Hence $r = K {[A]}^{0} {[B]}^{2}$

Therefore, total order of reaction is 0+2=2

Related content