Consider the data below for the reaction X products.

Time (in seconds)	[X] (in mol L1)
0	1.2500
131	0.6238
261	0.4167
392	0.3122
522	0.25

Note: You will have to determine the order of the reaction before you can answer parts (b)-(d) of this question.

For parts (a), (c), and (d): Enter your answer accurate to three significant figures. Do not include units in your answer, but use concentrations in mol L¹ and time in seconds.

(a) What is the average rate of consumption of X between 131 s and 392 s?

(b) What is the order of the reaction? (Enter an integer, or a fraction, e.g. 1/2, 3/2, etc.)

(c) What is the value of the rate constant, k ?

(d) What is the instantaneous rate of consumption of X at 392 s?

Hint for part (d): After you have established the order of the reaction, you can write the rate law for the reaction in two different forms. Which form can be used to calculate the rate? When using that form, what information do you need to calculate the rate at a specific time t?