Geo-Scientist Prelims 2025 Chemistry Q45: Consider the following statements regarding the distribution of…

Consider the following statements regarding the distribution of speeds of molecules :

1. The zero value of the first derivative of \(\left(\frac{1}{N}\right)\left(\frac{dN_u}{du}\right)\) w.r.t. speed corresponds to the most probable speed u_mp.
2. At the same temperature, the oxygen molecule has a narrower distribution of speeds than the carbon dioxide molecule.
3. The area under the speed distribution curve of a particular gas at two different temperatures is the same.

Which of the statement(s) given above is/are correct ?

1. (a) 1 and 2
2. (b) 2 and 3
3. (c) 1 and 3
4. (d) 2 only