Question

What is one atmosphere of pressure?

a.105 mm Hg
b.760 mm Hg
c.650 mm Hg
d.1000 mm Hg
e.45 mm Hg

Answer 1

In response to the question, one atmosphere of pressure is equivalent to 760 mm Hg, which is also the same as 760 torr or 101.325 kPa in SI units.

Step-by-step explanation:

One atmosphere of pressure is best defined using the common unit of measure called millimeters of mercury (mm Hg). By definition, 1 atmosphere (atm) is equal to exactly 760 mm Hg.

This measurement is also equivalent to 760 torr, as both torr and mm Hg measure the same amount of pressure. Moreover, 1 atm can be converted into the International System of Units (SI), which is 101.325 kilopascals (kPa).

So, in response to the question - What is one atmosphere of pressure? The correct answer is: b. 760 mm Hg.

Answer 2

One atmosphere of pressure (1 atm) is defined as 760 mm Hg, which is also equivalent to 760 torr. In the options provided, b. 760 mm Hg is the correct measure for 1 atm.

Step-by-step explanation:

Understanding Atmospheric Pressure

One atmosphere of pressure, commonly referred to as 1 atm, is a measure of the Earth's atmospheric pressure at sea level. This value is important when working with gases and pressure systems in various scientific calculations. The unit of measurement for this pressure is typically in millimeters of mercury (mm Hg), and 1 atm is defined as exactly 760 mm Hg. An equivalent unit is the torr, which is numerically equal to mm Hg and named after the inventor of the mercury barometer, Evangelista Torricelli.

To answer the student's question about what one atmosphere of pressure is in mm Hg, we refer to the established equivalency:

1 atm = 760 mm Hg = 760 torr

Therefore, when comparing the options provided by the student:

105 mm Hg

760 mm Hg

650 mm Hg

1000 mm Hg

45 mm Hg

It is clear that 760 mm Hg is the correct measurement for 1 atm of pressure. Thus, the correct option is b. 760 mm Hg.

This value can also be used to convert atmospheric pressure to other units, such as pascals (Pa). Specifically, 1 atm equals 101,325 Pa, which is the formal SI unit of pressure.