1.5 Kinetics Flashcards
What does the Maxwell-Boltzmann distribution illustrate about molecular kinetic energies in gases?
It illustrates key points about the distribution of molecular speeds and kinetic energies.
What characterizes molecules with low kinetic energy in the Maxwell-Boltzmann distribution?
They move slowly.
What characterizes molecules with high kinetic energy in the Maxwell-Boltzmann distribution?
They move very fast.
What is true about the majority of molecules in terms of kinetic energy according to the Maxwell-Boltzmann distribution?
They have moderate kinetic energies and speeds.
What is the relationship between kinetic energy and activation energy for chemical reactions?
Only molecules with kinetic energies greater than or equal to the activation energy can react upon collision.
what are the key features of a maxwell-Boltzmann curve
The curve originates at the origin, indicating that no molecules have zero kinetic energy.
It rises sharply to a peak that represents the most common kinetic energy level among the molecules, before gradually decreasing.
The total area under the curve is equivalent to the total number of molecules.
The peak of the curve shows the most probable kinetic energy a single molecule can have.
On average, the kinetic energy of all molecules is a bit higher than the peak energy.
what is the Boltzmann distribution?
the distribution of molecular energies across a gas
