In a study of the gas phase decomposition of hydrogen iodide at 700 K
HI(g)-‚½ H2(g) + ½ 12(g)
the following data were obtained:
[HI), M: 0.306; 0.153; 7.65x10^-2; 3.83x10^-2
seconds: 0; 3.12×10^33; 9.35×10^3; 2.18x10^4
Hint: It is not necessary to graph these data.
(1)
The observed half life for this reaction when the starting concentration is 0.306 M is_____seconds and when the starting concentration is 0.153 M is _____seconds.
(2)
The average A(1/[HI]) / delta t from t = 0 s to t = 3.12×10^3 s is______ M^-1 s^-1.
The average A(1/[HI]) / delta t from t = 3.12x10^3 s to t = 9.35x10^3 s is_____M^-1 s^-1.
(3)
Based on these data, the rate constant for this_____order reaction is_____M^-1 s^-1.