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 change of RX₃ over the entire experiment?

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