Answer to Question #314953 in Chemistry for Jay

Question

The decomposition reaction of hydrogen iodide at 508oC.

2HI (g) → H2

(g) + I2(g)

Time (s) 0 50 100 150 200 250 300 350

Concentration

of HI (M)

0.1000 0.0716 0.0558 0.0457 0.0387 0.0336 0.0296 0.0265

(a) Plot the concentration time graph.

(b) Calculate from the graph;

i. Average rate between 50 and 250 seconds

ii. Instantaneous rate at 200 s

iii. Initial instantaneous rate