On a Maxwell–Boltzmann kinetic-energy distribution
CHEMISTRY · Single correct · A Level · Chemistry · Kinetics · Kinetics
Problem
On a Maxwell–Boltzmann kinetic-energy distribution, a vertical line is drawn at the activation energy Ea for a gas-phase reaction, and the area to the right of the line is shaded. Which statement correctly interprets the shaded area?
(a) The shaded area represents the fraction of the total kinetic energy of the sample that exceeds Ea.},{
(b) The shaded area represents the fraction of particles whose kinetic energies exceed Ea.
(c) The shaded area represents the average kinetic energy of all the particles.
(d) The shaded area represents the number of collisions that occur with energies greater than Ea per unit time.