A certain gas is taken to the five states represted by dots in the graph. The plottd lines are isotherms. Order of the most probable speed ` v_p` of the molecules at these five states is

Options

A. `v_(P at 3) gt V_(P at 1)=V_(P at 2) gt V_(P at 4) =V_(P at 5)`
B. `V_(P at 1) gt V_(P at 2)=V_(P at 3) gt V_(P at 4) gt V_(P at 5)`
C. `V_(P at 3) gt V_(P at 2)=V_(P at 4) gt V_(P at 4) gt V_(P at 5)`
D. Insufficient information to predict the result.

Answer

A

Explanation

Stage1 and 2 are at same temperature also stages 4 and 5 are at same temperature. As, `V_(P)` is more at higher temperature and same at all stages at equal temperature.
`:. V_(P3) gt V_(P1)=V_(P2) gt P_(P4)=V_(P5)`
Hence (A)