1. A student conducted an experiment to determine the rate of a chemical reaction. The graph of the student’s results isshown below.

Which one of the following correctly shows the units of the initial rate of reaction?
A. mol L^-1 s^-1
B. mol L^-1
C. mol s^-1
D. mol

Solution

2.The equation below shows the equilibrium reaction for the conversion of dinitrogen tetroxide, N₂O₄(g) , to nitrogen
dioxide, NO₂(g).

Which one of the following occurs when the temperature is increased from 35 °C to 80 °C?

Solution