A friend studies a first-order reaction and obtains the following three graphs for exper...

A friend studies a first-order reaction and obtains the following three graphs for experiments done at two different temperatures. (a) Which two lines represent experiments done at the same temperature? What accounts for the difference in these two lines? In what way are they the same? (b) Which two lines represent experiments done with the same starting concentration but at different temperatures? Which line probably rep-resents the lower temperature? How do you know? [Section 14.41]