Question

the gas phase reaction of hydrogen with iodine is first order in and second order overall. complete the rate law for this reaction in the box below. use the form , where '1' is understood for or and concentrations taken to the zero power do not appear. don't enter 1 for or . rate

Answer 1

he given reaction isH2 + I2 = 2HI

Given that the reaction is first order with respect to both Hydrogen and Iodine, we can write the rate law as follows

Rate = k [H2][I2]

Given that

[H2] = 4.20 × 10-2 M

[I2] = 1.19 × 10-2 M

Rate = 1.07 × 10-21 M s-1

Hence, from the rate law expression

k = Rate[H2][I2]

Fuel cells may produce power, heat, and electricity from hydrogen. While transportation and utilities are burgeoning sectors, the most prevalent uses of hydrogen today are in fertilizer manufacturing and petroleum refining. Iodine is used in numerous industries today. Iodine salts are used in animal feed additives, disinfectants, printing inks and dyes, photographic chemicals, pharmaceuticals, and disinfectants. Polarizing filters for LCD displays are also made from iodine.

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