Problem

Problem

The mass of

H_2

molecule is

3.32 \times 10^{-24}

g. If

10^{23}

hydrogen molecules per second strike

2 \text{ cm}^2

of wall at an angle of

45^\circ

with the normal, when moving with a speed of

10^5 \text{ cm/s}

, the pressure exerted on the wall is nearly: a.

1350 \text{ N/m}^2

b.

2350 \text{ N/m}^2

c.

3320 \text{ N/m}^2

d.

1660 \text{ N/m}^2

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