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51. For a gas at a temperature the root-mean-square velocity

Vrms the most probable speed Vmp and the average speed Vav  obey the relationship

(a)  Vav  >Vrms   >  Vmp               (b)    Vrms    >Vav    >Vmp

(c)  Vmp    > Vav    >Vrms             (d)    Vmp   >Vrms    >Vav

Answer-b

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