What causes pressure changes of reactants to affect the reaction rate?
A. The boiling point of the gas is changed.
B. The speed of the molecules is changed.
C. The temperature of the molecules is changed.
D. The frequency of collisions is changed.
Answer (1)
Pressure changes primarily affect reaction rates by altering the frequency of molecular collisions among reactants. An increase in pressure brings the molecules closer together, leading to more frequent interactions. Thus, the correct choice is that pressure changes the frequency of collisions. ;
