Question

The graph below shows the number of collisions with particular energy for two different temperatures.

(a) Which is greater, T2 or T1? How can you tell?

(b) What does this graph tell us about the temperature dependence of the rate of a chemical reaction? Explain your answer.

Short answer

(a) $T_2>T_1$

(b) As temperature rises, reaction rate increases.

Step-by-step solution

Understanding how T2 >T1 for given number of collisions.

As temperature increases, the distribution of collision particles energy shifts to the right. Higher the temperature - more high-energy collisions.

Understanding the dependence of reaction rate on temperature.

With an increase in temperature, the number of collisions increases as the kinetic energy of molecules is increases. By increase in the number of collisions, the rate of reaction gets increased.