a reaction takes place between two gases at 298 k. there are 2.0 moles of gas a and 3.0 moles of gas b. which scenario would  lower  the collision frequency between gases as well as the rate of reaction between gases a and b? a)increase the moles of gas b. b)lower the temperature of the reaction to 250 k. c)compress the gases into a smaller volume. d)introduce a catalyst to the container.

B)Lower the temperature of the reaction to 250 K.

Explanation:

Option B is correct. Lowering the temperature will decrease the kinetic energy of the gas molecules decreasing the frequency of collision and the rate of the reaction.

Option A is incorrect. Increasing the moles or the number of gas molecules of A and B will bring the gas molecules closer to each other, thus increasing the frequency of collision and the rate of the reaction.  

Option C is incorrect. Compressing the gas into a small volume will bring the gas molecules closer to each other, thus increasing the frequency of collision and the rate of the reaction.  

Option D is incorrect. A catalyst works by lowering the activation energy and thus increasing the frequency and orientation of the collision between gas molecules and thus increasing the rate of the reaction.  

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c.

explanation: