Final answer:
The Maxwell-Boltzmann curve at absolute zero is represented by a single point since all molecular motion stops and every particle has zero speed.
Step-by-step explanation:
The Maxwell-Boltzmann curve at absolute zero would be best represented by D) A point. At absolute zero, which is -273.15 °C or 0 K, all molecular motion stops and the internal energy of the system is at its minimum. The Maxwell-Boltzmann distribution describes the distribution of speeds among particles in a gas, and at absolute zero, there are no particles moving, so all molecules would theoretically have zero speed.
This means that on the graph of the Maxwell-Boltzmann distribution, all the 'speed' value would converge to a single point at zero, reflecting that there is no molecular movement.
The Maxwell-Boltzmann distribution is a graph that shows the distribution of speeds of particles in an ideal gas at a given temperature. At absolute zero (-273.15 °C), the curve of the distribution is a point because all the particles have zero energy and therefore zero speed.