Could you please solve it, I need it quickly

H2(g)+I2(g)2HI(g)Frommechanismgivenbelow, a) Derive the rate equation for, rH2 using steady state approximation for I, Proposed mechanism: H2+2Ik32HI(slow) b) Assume that the second step in the below mechanism is rate determining and first step is rapid and assumed as preequilibrium (equilibrium constant K1 ), derive the rate equation for, rH2 using rate determining method. 1. I2k2k12I (rapid, in equilibrium, K1 ) 2. H2+2Ik32HI (slow step, rate determining)