Question
question 1 is what I need help with.
physical chemistry
üre (see lecture notes) from which it follows that: Hence a plot if in 4 versus t will have a stope- calculated for each run, from: In A =-k,1 + In A Once youl have determined all the k,'s then k can be and the mean value and the standard deviation for the values with associated units! second-order rate constant found. Be sure to quote your Questions 1. (a) Write down the rate of reaction for the reaction: for each reactant and product. (b) The reaction CsHs C2Hs+ CH, is believed to follow a first-order rate law. What is the equation for this rate law? (c) For a second-order reaction the rate law can be written as: d[A] dt = k,[A]2 What are the units associated with the rate constant k2? Why is the elementary reaction, NO2 + NO2 N 204, referred to as a bimolecular (d) reaction? e. The rates of reaction between hydroxyl radicals, OH, and aromatic hydrocarbons are of impo understanding the chemistry of polluted urban atmospheres, the combustion process and the fo soot in flames.
Explanation / Answer
1
a) rate = -[C5H12]/dt =-1/8 [O2]/dt =1/5[CO2]/dt= 1/6 [H2O]
b) rate = k [C3H8]
c) unit of k2 = mol -1 L s -1
d) Bimolecular reaction is a reaction that occurs due to collision of two molecules.
