Question

select the correct answer from each drop-down menu. a beaker containing a mixture of n₂(g) and h₂(g) is cooled by placing it in a tray of cold water. in response to the cooling, the likely number of collisions between the molecules of n₂(g) and h₂(g) will the rate of the reaction will
decrease
increase
remain the same
next

Explanation:

For the first drop - down: When a gas mixture (here \(N_2(g)\) and \(H_2(g)\)) is cooled, the kinetic energy of the molecules decreases. With lower kinetic energy, the molecules move slower, so the number of collisions between \(N_2\) and \(H_2\) molecules will decrease.

For the second drop - down: The rate of a chemical reaction is related to the frequency of effective collisions. Since cooling decreases the number of collisions (and also the energy of collisions, reducing the number of effective collisions), the rate of the reaction (between \(N_2\) and \(H_2\), likely for ammonia synthesis or other reactions) will decrease.

Answer:

First drop - down: decrease
Second drop - down: decrease