The Compound RX₃ Decomposes According to the Equation 3RX₃

Multiple Choice

The compound RX₃ decomposes according to the equation 3RX₃  R + R₂X₃ + 3X₂
In an experiment the following data were collected for the decomposition at 100°C. What is the average rate of reaction over the entire experiment?

A) 0.011 mol L^-1s^-1
B) 0.019 mol L^-1s^-1
C) 0.044 mol L^-1s^-1
D) 0.049 mol L^-1s^-1
E) 0.069 mol L^-1s^-1