| A certain gas is taken to the five states represented by dots in the graph. The plotted lines are isotherms. Order of the most probable speed \[{{V}_{P}}\]of the molecules at these five states is: |
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A) \[{{V}_{P\,at\,3}}>{{V}_{P\,at\,1}}={{V}_{P\,at\,2}}>{{V}_{P\,at\,4}}={{V}_{P\,at\,5}}\]
B) \[{{V}_{P\,at\,1}}>{{V}_{P\,at\,2}}={{V}_{P\,at\,3}}>{{V}_{P\,at\,4}}>{{V}_{P\,at\,5}}\]
C) \[{{V}_{P\,at\,3}}>{{V}_{P\,at\,2}}={{V}_{P\,at\,4}}>{{V}_{P\,at\,1}}>{{V}_{P\,at\,5}}\]
D) Insufficient information to predict the result.
Correct Answer: A
Solution :
Stages 1 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. \[\therefore \] \[{{V}_{P3}}>{{V}_{P1}}={{V}_{P2}}>{{V}_{P4}}={{V}_{P5}}\] Hence [A].
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