For the 2° reaction H2(g) + I2(g) → 2HI(g) at 650 K, the collisional cross section, sigma H2-I2, is 0.36 nm2, the reducedmass is 3.32 × 10−27 kg, and the activation energy is 171 kJ mol−1. Use collision theory to calculate the rateconstant. If the actual value of the rate constant is 8.4 × 10−6 M-1s-1, determine the steric factor for this reaction.

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