5. Determine whether each of the following statements is true or false. If F, ex

Question

5. Determine whether each of the following statements is true or false. If F, explain why. a. A higher activation energy gives a lower reaction rate. b. Generally speaking, a temperature increase of 10 °C will double a reaction rate. c. If reactant molecules collide with greater energy than the activation energy, they will change into products. d. The activation energy of a reaction depends on temperature. e. The orientation probabilityfector (p) is near I for reactions betwen single atoms. f A catalyst increases the rate by increasing collision frequency g. The initial rate of a reaction is its maximum rate. h. Increasing the temperature works to increase the reaction rate by only increasing the frequency of collisions.

Explanation / Answer

a. True

b. True

c. True

d. False, The activation energy does not depend on the temperatue. Activation energy cannot be altered by the temperature as it is the minimum amount of energy required for a reaction to occur. When we increase the temperature only the number of molecules taking part in the reaction increases but the activation energy remains unaltered. Increase in temperature only takes the molecules closer to the activation energy but the activation energy itself remains unaltered.

e. True

f. False, a catalyst increases the rate of reaction by lowering the activation energy.

g. True

h. True

Related Questions

Navigate

• Browse (All)
• Browse 5
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.