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At STP ,the order of root mean square sp...

At STP ,the order of root mean square speed of molecules `H_2 , N_2 , O_2` and HBr is :

A

`H_2 gt N_2 gt O_2 gt HBr`

B

`HBr gt O_2 gt N_2 gt H_2`

C

`HBr gt H_2 gt O_2 gt N_2`

D

`N_2 gt O_2 gt H_2 gt HBr`

Text Solution

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The correct Answer is:
A
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