Reference no: EM132363093

a. A high school student went to a pharmacy to get some medicine. The pharmacist put the medicine in a dark brown bottle and told the student to keep it out of direct sunlight. Why?

b. The rate of a reaction 2NO(g) + O₂(g) 2NO₂(g) is given by the rate law Rate = k[NO]²[O₂], where the rate constant k = Ae^-Ea/RT. Use these equations to answer the following questions.

i. How would the rate of the reaction change if the concentration of NO were halved?

ii. How does the rate law include the effect of temperature on reaction rate?

c. One step in the industrial production of hydrogen gas involves reacting CO with steam according to the reaction CO(g) + H₂O(g) ₂ CO₂(g) + H₂(g). Heat is produced in this reaction, which is represented by the following diagram. Use the equation and diagram to answer the following questions.

i. What would increasing the temperature do to the reaction rate? Explain your answer.

ii. What would increasing the temperature do to the hydrogen yield? Explain your answer.

iii. How would increasing the pressure affect the reaction rate? Explain your answer.

iv. What would increasing the pressure do to the hydrogen yield? Explain your answer.

v. This reaction is run using an iron catalyst. What would adding iron to the reaction do to the energy diagram? Explain your answer and draw the change on the energy diagram.

vi. How does the catalyst accomplish its effect on the energy diagram of a reaction? What does the change do to the reaction rate?