QUESTION 3 (10 MARKS) a) 2HBr (g) → H2(g) + Brz (g) The rate equation for the thermal decomposition of hydrogen bromide

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Question 3 10 Marks A 2hbr G H2 G Brz G The Rate Equation For The Thermal Decomposition Of Hydrogen Bromide 1 (45.92 KiB) Viewed 67 times

QUESTION 3 (10 MARKS) a) 2HBr (g) → H2(g) + Brz (g) The rate equation for the thermal decomposition of hydrogen bromide is rate=k[HBr]?. At 250 °C and a concentration of 1.20 mol dm, the rate of decomposition of hydrogen bromide is 3.5 x 10-4 mol dms! i. Calculate the rate constant for the reaction at 250 °C (state its unit). ii. Calculate the number of hydrogen molecules formed per second (rate of formation) in 1dm of solution. (Avogadro number: 6.02 x 1023) (2 + 1 marks)