A vessel of volume V contains a mixture of 1 mole of hydrogen and 1 mole oxygen (both considered as ideal). Let `f_(1)(v) dv,` denote the fraction of molecules with speed between v and (v+ dv) with `f_(2)(v)dv`, similarly for oxygen . Then ,

Options

A. `f_1(v)+f_2(v)=f(v)` obeys the Maxwell's distribution law
B. `f_1(v),f_2(v)` will obuy the Maxwell's distribution law separately
C. Neither `f_1(v)`, nor `f_2(v)` will obey the Maxwell's distribution law
D. `f_2(v) and f_1(v)` will be the same

Answer

B

Explanation

For a function f(v), the number of molecules n = f(v) which have speeds between v and v + dv.
For each function `f_1(v) and f_2(v)`, n will be different, hence each function `f_1(v) and f_2(v)` will obey the Maxwell.s distribution law separately