When aqueous sodium thiosulfate is mixed with hydrochloric acid, the rate of reaction becomes faster if the concentration of each reactant is increased. Nitrogen gas reacts with hydrogen gas, and the reaction rate also increases if the pressure in the reaction vessel is raised. Which row gives the correct explanation for why the stated change makes the reaction happen faster?
- Aaqueous sodium thiosulfate + hydrochloric acid: higher frequency of collisions between particles; nitrogen + hydrogen: higher frequency of collisions between particles
- Baqueous sodium thiosulfate + hydrochloric acid: higher frequency of collisions between particles; nitrogen + hydrogen: the activation energy is decreased
- Caqueous sodium thiosulfate + hydrochloric acid: the activation energy is decreased; nitrogen + hydrogen: higher frequency of collisions between particles
- Daqueous sodium thiosulfate + hydrochloric acid: the activation energy is decreased; nitrogen + hydrogen: the activation energy is decreased