Question

The given figure shows the Maxwell distribution of molecular speeds of a gas at three different temperatures $T_{1}, T_{2}$ and $T_{3}$. The correct order of temperature is

• A. $T_{1 }>T_{2}>T_{3}$
• B. $T_{1}>T_{3}>T_{2}$
• C. $T_{3}>T_{2}>T_{1}$
• D. $T_{2}>T_{3}>T_{1}$

Answer 1

Answer: (D)

At lower temperatures, the molecules have less energy. Hence, the molecular speeds are lower, and distribution of molecules has smaller range. But as the temperature increases, distribution range flattens. Hence, correct order is $: T_{2} > T_{3} > T_{1}$