Given that the rate of disappearance of bromine is −3.5×10−4M/s for the following reaction:
H2(g)+Br2(g)→2HBr(aq)
What is the rate of formation for HBr?
Rates of A and B can be given by :
12d(HBr)dt=−d(H2)dt=−d(Br2)dt
So d(HBr)dt=2×3.5×10−4M/s
⟹d(HBr)dt=7.0×10−4M/s
Hence, option D is correct.