engineering chemistry MCQ #4941

engineering chemistry MCQ #4941

1. Question 1

   Q1. The reaction rate increases with temperature because

   • A) the activation energy decreases
   • B) the frequency of collisions increases
   • C) the fraction of molecules having energy greater than Ea increases
   • D) the equilibrium constant increases

   Answer: the fraction of molecules having energy greater than Ea increases

   Explanation: As temperature increases, more molecules have energy greater than or equal to Ea, thus increasing the reaction rate.