Practice question · Fill in the blanks
Complete the statements about reaction kinetics.
The ______ expresses reaction rate as a function of concentration: rate . For , the reaction is ______ order in A. The ______ is the minimum kinetic energy required for a collision to produce a reaction.
Word bank: rate law · second · activation energy · equilibrium constant
Hints
- Order is determined by experiment, not read off the balanced equation.
- Coefficients and rate-law exponents are not the same thing.
Show the answer
The rate law expresses reaction rate as a function of concentration: rate . For , the reaction is second order in A. The activation energy is the minimum kinetic energy required for a collision to produce a reaction.
Why
Reaction order is determined experimentally, not from stoichiometric coefficients in the balanced equation.
Practise Reaction rates and collision reasoning
The app has 7 more questions on this lesson, and keeps your place in the course. Physics I is free to start.
More questions on Reaction rates and collision reasoning
- Raising the temperature speeds a reaction mainly by making molecules collide more often.
- Complete the statement with the correct term.
- Raising temperature speeds a reaction far more than the increase in collision frequency alone predicts. Why…
- A catalyst can speed a reaction a million-fold and is recovered unchanged at the end. Why does that not…
- Which statements about the Arrhenius equation k = A· e^-Ea/RT are correct?