With respect to each reactant, we were given another table of initial rates. A wants us to know what the order of the reaction is. So, first, by graphing, we can get these two numbers so we can then calculate in B So what we can do then with the information that we have, is let's answer a and then we'll go back and finish. When we do that, we get a slope that is equal to negative e a the activation barrier over our and we get a Y intercept that is equal to the natural log of the frequency factor or the pre exponential factor.

We can calculate these data in excel as I did, and then plot the natural log of the rate constant as a function of one over Kelvin temperature.

To do this, we're going to have to take the Kelvin temperature, determine one over the Kelvin temperature, take the rate constant, determine the natural log of rate constant and an Iranian plot is you recall is a plot of the natural log of the rate constant as a function of the one over Calvin temperature. It wants us to determine what the activation barrier is and the pre exponential factor or the frequency factor. We are given the temperature in Kelvin, and we are given the rate constant as a function of temperature and in part B. So although this is part B, I'm going to start with Part B. And then last of all, you're asked to calculate the half life of the reaction. And then you need to use some of the data that you have in order to calculate the rate of the reaction at known concentrations of reactant. You need to be able to interpret data that is, that shows the rate constant as a function of temperature in order to get the activation barrier, activation energy and the pre exponential factor. You need to be able to interpret data to determine the order of the reaction from initial rates. Question number 1 25 is a good review of almost every concept that was introduced in this chapter. What is the half-life of methane in the atmosphere in years atģ23 K? (Assume that = 0 = 5.0 * 10-7 M.) Pressure) so that 1 mol gas occupies 22.4 L.ĭ. Note that 1 ppm of CH4 by volume means 1 LĬH4>106 L air. (by volume) and an ozone concentration of 5.0 ppm (by The reaction at 273 K for a methane concentration of 1.8 ppm Atmospheric concentrations of methane and ozone can varyĭepending on the location and altitude. Use the data in the second table to determine the activationīarrier and pre-exponential factor for the reaction.Ĭ. Use the data in the first table to determine the order of theī. Study the data and answer the questions that follow.Ī. Methane reacts with ozone and gets the data shown in the tables Methane is broken down in theĪtmosphere by ozone (O3), making its atmospheric lifetimeĪ research group studied the rate of the reaction by which Role in climate change because it absorbs infrared radiation moreĮfficiently than carbon dioxide. It is the second most prevalent greenhouse Try to do the attempts in a row: muscle memory is key in this achievement, try not to pause too many times.Methane (CH4) is a greenhouse gas emitted by industry, agriculture,Īnd waste systems.If you get frustrated take all the breaks you need, be patient. You are going to fail, a lot actually: be mentally prepared and don’t get overwhelmed if you don’t manage to beat the course or reach the target time in the first 30-50 attempts.I do recommend muting the background arcade music. Play with the in-game audio: it is important to listen to the car’s engine to make sure you are accelerating or braking at the right time.I haven’t played the game with a controller so I can’t make a detailed comparison, but you probably have better control of inputs with the keyboard. Start in the daytime: (if it is your first attempt) start practising the circuit at dawn to familiarise yourself with the terrain and the location of the obstacles.Check the settings in the references section. Reduce graphics quality for more FPS (always better).Avoid distractions: close the gas station, turn off all events and disable blur and other annoying elements.Save approximately $1,000-2,000 before you set out on the achievement, to be on the safe side and not worry about running out of money.Some of the recommendations may seem obvious, but they are important to facilitate the job.

Gas escape simulator