Consider the following statement regarding Maxwell Boltzmann distribution curve I. The fraction of molecules with very low or very high speeds is very small. II. At higher temperatures, the curve near u mp becomes narrower. III. The speed possessed by maximum fraction of molecules is known as most probable speed. Which of the above statement/s is/are incorrect?

Question

Consider the following statement regarding Maxwell Boltzmann distribution curve I. The fraction of molecules with very low or very high speeds is very small. II. At higher temperatures, the curve near u mp becomes narrower. III. The speed possessed by maximum fraction of molecules is known as most probable speed. Which of the above statement/s is/are incorrect? (A) Only I (B) Only II (C) II and III (D) I and III

Tardigrade Admin · Accepted Answer

Statement (b) is incorrect.
It's correct form is as follows :
In Maxwell-Boltzmann's distribution curve, on increasing the temperature, the curve near

u_{m p}

becomes broader, which indicates that more molecules possess speeds near to

u_{m p}

.
Rest other statements are correct.

Only I

Only II

II and III

I and III

Statement (b) is incorrect. It's correct form is as follows : In Maxwell-Boltzmann's distribution curve, on increasing the temperature, the curve near ump​ becomes broader, which indicates that more molecules possess speeds near to ump​. Rest other statements are correct.

Statement (b) is incorrect.
It's correct form is as follows :
In Maxwell-Boltzmann's distribution curve, on increasing the temperature, the curve near $u_{m p}$ becomes broader, which indicates that more molecules possess speeds near to $u_{m p}$ .
Rest other statements are correct.