The Maxwell-Boltzmann distribution curve for a specific reaction carried out at various temperatures is shown below:
Arrange the following temperatures (in K) in the decreasing order of their values.
(A) T1 K
(B) T2 K
(C) T3 K
(D) T4 K
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (C), (D), (B), (A).
On a Maxwell–Boltzmann distribution curve, a higher temperature gives a lower, flatter peak shifted to higher energy.
So the tallest, narrowest curve belongs to the lowest temperature and the flattest curve to the highest temperature. Reading the peak heights from the graph (highest to lowest): T1 > T2 > T4 > T3. The temperatures are in the reverse order:
T3 > T4 > T2 > T1
Shortcut: T3 (C) has the flattest curve and T1 (A) the tallest. Only Option (1) starts with (C) and ends with (A).
NCERT (2026-27 edition):
Temperature Dependence of the Rate of a Reaction – …
