in Mcl CHE 114-01 Homework 2 t Reaction Rates t Reaction Rates To measure the sp

Question

in Mcl CHE 114-01 Homework 2 t Reaction Rates t Reaction Rates To measure the speed of a car, we use miles per hour (miles/hour or mi/h or mph). To measure the rate of a reaction we use molar concentration per second (M/s. 1 of 10 next Based on your answer to Part B, what is the average rate of formation of HCP Express your answer to three decimal places and include the appropriate units. 0.122 M Submit Hints My Answers Give Up Review Part Correct According to the chemical equation, there wil be twice as many moles of HCIformed as moles of L. Therefore, the molar concentration of HClis inoreasing at twice the rate of the I2 concentration. Part D Based on your answer to Part Bor C, what is the average rate of change of H2? Remember that reactant concentrations decrease over time. Express your answer to three decimal places and include the appropriate units. Value Units Submit Hints My Answers Give up Review Part incorrect; Try Again; 5 attempts remaining Provide Feedback C

Explanation / Answer

Ans:- Here the given reaction is

H2 +2ICl -> 2HCl + I2

From part B, the average rate of formation of I2 has been calculated

rate of formation of I2 = 0.061 M/s

From part C ,the average rate of formation of HCl has been been calculated

rate of formation of HCl = 0.122 M/s

Now , rate of reaction for the above reaction can be written as

rate of reaction = - d[H2] / dt = - 1/2 d[ICl]/dt

                       = + 1/2 d[HCl]/dt = + d[I2] /dt

Rate of change of H2 = - d[H2] / dt = +1/2 d[HCl]/dt

                               = 1/2 x 0.122 M/s

                                = 0.061 M/s

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