question 10 (1 point)\nwhich statement about the factors that affect reaction rates is false?\ndecreasing…

question 10 (1 point)\nwhich statement about the factors that affect reaction rates is false?\ndecreasing the concentrations of the reacting particles decreases the chance of collision.\na collision with poor orientation requires a higher activation energy than a collision with optimum orientation.\nincreasing the pressure in a gaseous reaction increases the chance of collision.\na reaction occurs every time particles of the reactants collide.\nincreasing the temperature increases the reaction rate.

question 10 (1 point)\nwhich statement about the factors that affect reaction rates is false?\ndecreasing the concentrations of the reacting particles decreases the chance of collision.\na collision with poor orientation requires a higher activation energy than a collision with optimum orientation.\nincreasing the pressure in a gaseous reaction increases the chance of collision.\na reaction occurs every time particles of the reactants collide.\nincreasing the temperature increases the reaction rate.

Answer

Brief Explanations:

  • For the first option: According to the collision theory, when the concentration of reacting particles decreases, there are fewer particles per unit volume. So, the chance of them colliding (which is a prerequisite for reaction) decreases. This statement is true.
  • For the second option: Activation energy is the minimum energy required for a reaction to occur. A collision with poor orientation is less likely to lead to a reaction. So, it needs more energy (higher activation energy) compared to a collision with the optimum orientation. This statement is true.
  • For the third option: In a gaseous reaction, increasing pressure (by reducing volume, for example) means that gas molecules are closer together. So, the frequency of collisions (chance of collision) increases. This statement is true.
  • For the fourth option: According to the collision theory, for a reaction to occur, particles must collide with sufficient energy (activation energy) and proper orientation. Just a collision is not enough. So, this statement is false.
  • For the fifth option: Increasing temperature increases the kinetic energy of particles. More particles will have energy equal to or greater than the activation energy. Also, the collision frequency increases. So, the reaction rate increases. This statement is true.

Answer:

A reaction occurs every time particles of the reactants collide.