Order For a particular reaction, aA+bB+cC→dDaA+bB+cC→dD, the rate law was experimentally determined to be rate=k[A]0[B]1[C]2=k[B][C]2rate=k[A ]0[B]1[C]2=k[B][C]2 This equation is zero order with respect to AA. Therefore, changing the concentration of AA has no effect on the rate because [A]0[A]0 will always equal 1. This equation is first order with respect to BB. This means that if the concentration of BB is doubled, the rate will double. If [B][B] is reduced by half, the rate will be halved. If [B][B] is tripled, the rate will triple, and so on. This equation is second order with respect to CC. This means that if the concentration of CC is doubled, the rate will quadruple. If [C][C] is tripled, the rate will increase by a factor of 9, and so on. . Overall reaction order and rate-constant units The sum of the individual orders gives the overall reaction order. The example equation above is third order overall because 0+1+2=30+1+2=3. For the units of rate to come out to be M/sM/s, the units of the rate constant for third-order reactions must be M−2⋅s−1M−2⋅s−1 since M/s=(M−2⋅s−1)(M3)M/s=(M−2⋅s−1)(M3) For a second-order reaction, the rate constant has units of M−1⋅s−1M−1⋅s−1 because M/s=(M−1⋅s−1)(M2)M/s=(M−1⋅s−1)(M2). In a first-order reaction, the rate constant has the units s−1s−1 because M/s=(s−1)(M1)M/s=(s−1)(M1). Analyzing a specific reaction Consider the following reaction: H2+2ICl→I2+2HClH2+2ICl→I2+2HCl, rate=k[H2][ICl]
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Chemistry, 23.06.2019 06:20, cowboo5000pcl655
An object of mass 10.0 kg and volume 1000 ml and density 10 g/ml sinks in water who’s density is 1.0 g/ml. what is the mass of the water which has been displaced in kilograms
Answers: 1
Chemistry, 23.06.2019 10:30, fatheadd2007
When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3 2 kilopascals, what is the partial pressure of the hydrogen?
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Chemistry, 23.06.2019 11:30, amiechap12
Which of the following is a possible formula unit? (2 points) select one: a. pbo b. li2b c. al2pb3 d. clo
Answers: 1
Order For a particular reaction, aA+bB+cC→dDaA+bB+cC→dD, the rate law was experimentally determined...
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