1.

The mass of H_2 molecule is 3.32 xx 10^(-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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