The following data were collected for the reaction H 2 (g) + l 2 (g) → 2 Hl(g) at 780 K: t /s 0 1 2 3 4 [Hl]/(mol dm -3 ) 1 0.43 0.27 0.2 0.16 (a) Plot the data in an appropriate fashion to determine...

The following data were collected for the reaction H₂(g) + l₂(g) → 2 Hl(g) at 780 K:

t/s                                      0       1         2        3        4
[Hl]/(mol dm^-3)                  1       0.43    0.27   0.2     0.16
(a) Plot the data in an appropriate fashion to determine the order of the reaction . (b) From the graph, determine the rate constant