1.

The mass of H_(2) molecule is 3.32xx10^(-24) g .If 10^(23) hydrogen molecules per second strike 2 cm^(2) of wall at an angle of 45^(@) with the normal,when moving with a speed of 10^(5) cm/s,the pressure exerted on the wall is nearly

Answer»

`1350 "N/m"^(2)`
`2350 "N/m"^(2)`
`3320 "N/m"^(2)`
`1660 "N/m"^(2)`

ANSWER :B


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