1. Tardigrade
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  4. The mass of H2 molecule is 3.32 × 10-24 g If 1023 hydrogen molecules per second strike 2 cm2 of wall at an angle of 45° with the normal, while moving with a speed of105 cm/s, the pressure exerted on the wall is nearly.

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Q. The mass of $ H_2$ molecule is $3.32 × 10^{-24} g$ If $10^{23} $ hydrogen molecules per second strike $2\, cm^2$ of wall at an angle of $ 45^{\circ}$ with the normal, while moving with a speed of$10^5\, cm/s$, the pressure exerted on the wall is nearly.

BITSATBITSAT 2018

Solution:

Correct answer is (b) $2350\, N/m^2$