Chapter 12, Problem 49A

Interpretation Introduction

Interpretation:

At an ocean depth of $76.2m,$ the pressure is about $8.4atm$ It should be converted to $mmHg$ and $kPa$ units.

Concept introduction:

 Atmospheric pressure is the force exerted by the air on a surface as gravity pulls it to Earth.

Answer to Problem 49A

$8.4atm$ $=850kPa$

$8.4atm$ $=6400mmHg$

Explanation of Solution

Given: Depth of ocean = $76.2m,$ pressure = $8.4atm$

$760mmHg$ = $1atm$

$8.4atm\times \left(760mmHg/1atm\right)=6400mmHg$

Also,

$1atm$ = $101.325kPa$

$8.4atm\times \left(101.325kPa/1atm\right)=850kPa$$$

Conclusion

Thus,

$8.4atm$ $=850kPa$

$8.4atm$ $=6400mmHg$