Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Physical: Chemical Kinetics

Question:

Which of the following is true for Maxwell Boltzmann distribution curve?

Options:

It represents a plot of curve between fraction of molecules and vibrational energy.

It represents a plot of curve between fraction of molecules and rotational energy.

It represents a plot of curve between fraction of molecules and kinetic energy.

None of these

Correct Answer:

It represents a plot of curve between fraction of molecules and kinetic energy.

Explanation:

The correct answer is option 3. It represents a plot of curve between fraction of molecules and kinetic energy.

Ludwig Boltzmann and James Clark Maxwell used statistics to predict the behaviour of large number of molecules. According to them, the distribution of kinetic energy may be described by plotting the fraction of molecules (NE /NT) with a given kinetic energy (E) vs kinetic energy (Fig. 4.8). Here, NE is the number of molecules with energy E and NT is total number of molecules.