Question
please help me answer number 12, thank you!
P (h) The consump 16 11 For the reaction Cta)De c nsive . Dg) IC)s. fime is phe of sime ous chaptec meaurd over time to er the rate of a gas- solvent. How does sel affect che rate of e Time large chuaks Then erized. How does How do you determine each of the following? Tecet the rate of its (a) The average ra (a) The average rate over the entire experiment (b) The reaction rate at time x ect the rate of a ()The initial reaction rate and (c) be different in (d) Would the values in parts (a), tb), and (cj be dit 619 rystals of iodine ploted ID] vs. time? Explain antity of H, gas, 16.12 The compound AX, decomposes accosding to the tion. Ina second 2AX1g) 2AX(g) + X2(g). In one experiment,lorem to the equate e and hydrogen. measured at various times and these data wersd ture above the periments does Time (s) IAX2l (mol/t 0.0 2.0 6.0 8.0 10.0 20.0 0.0500 0.0448 0.0300 0.0249 0.0209 0.0088 162 erature and a h time? rate and an en an initial (b) Is the initial rate higher or lower than the rate in part a U (a) Find the average rate over the entire experiment th graphical methods to estimate the initial rate.
Explanation / Answer
?[AX2] / ?t = (0.1312 - 0.2635) / (8.0 - 0.0) = -0.017 mol/L*s
b. & c. There are two ways to do b. and c.:
One way is to plot the data, and draw a curve through the data points. Using a straightedge, estimate the slope of the curve at t = 0 and t = 6.5 s by using ?y/?x. This will work, but will be only as accurate as your drawing skills.
The other way is to plot ln[AX2] vs. t. After doing this, these data form an almost perfectly straight line (R
