Question

Consider the following graph about Maxwell's distribution of speeds at two different temperatures $T_1$ and $T_2$.
Select the correct statements regarding the characteristics of the curves

• A. If molecules enter the sample the total area under the curve would increase
• B. The area under the curve will increase with increase in molar mass of the gas
• C. The maxima of the curve shifts towards right as the temperature is raised
• D. The area under the curve is independent of temperature

Answer 1

Answer: (A), (C), (D)

The correct options are
A If molecules enter the sample the total area under the curve would increase
C The maxima of the curve shifts towards right as the temperature is raised
D The area under the curve is independent of temperature

• $U=\sqrt{\frac{2RT}{M}}$ where U is the most probable velocity, when the temperature is increased the maxima will shift right
• The area under the curve is independent of the molar mass of a gas and its temperature
• The area under the curve is representative of the total number of molecules. Hence, if molecules enter the sample, the area under the curve will increase