The mass of an molecule is

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

The mass of an

\mathrm{H_2}

molecule is

3.32\times10^{-24}\text{ g}

. If

10^{23}

hydrogen molecules per second strike a

2\text{ cm}^2

wall at an angle of

45^\circ

with the normal, while moving with a speed of

10^5\text{ cm/s}

, the pressure exerted on the wall is nearly: (1)

1350\text{ N/m}^2

(2)

2350\text{ N/m}^2

(3)

3320\text{ N/m}^2

(4)

1660\text{ N/m}^2