What does a rate vs concentration graph show that concentration vs time doesn't?

[sueanne]

hi i have almost finished my chemistry coursework on rates of reaction based on concentration using sodium thiosulphate and hydrochloric acid. the conc of sodium thiosulphate is my variable. we measure concentration by placing a cross under the reaction mixture and sulphur percipitated makes the cross disappear using time taken for it to disappear.

i have taken two graphs:
one is showing the concentration against time taken
second is showing the rate of reaction (1/time) against concentration

my question is: what does the second graph show that the first graph dosent? apart from the fact that rate of reaction is porportional to concentration. Thanks

 

[GCT]

which one is more important for understanding the rate constant. The order of the reaction?