Question

One standard atmosphere of pressure (SP) is equivalent to ______ mmHg.

A) 760 mmHg.
B) 710 mmHg.
C) 790 mmHg.
D) 720 mmHg.

Answer 1

One standard atmosphere of pressure is equivalent to 760 mmHg, therefore, option A) 760 mmHg is the correct answer.

Step-by-step explanation:

One standard atmosphere of pressure (SP) is equivalent to 760 mmHg. Option A) 760 mmHg is the correct answer. The unit of pressure known as the atmosphere (atm) is defined as the pressure required to support a column of mercury exactly 760 mm tall. This measurement is equal to one torr, another unit of pressure named after the inventor of the mercury barometer, Evangelista Torricelli. In summary, 1 atm is exactly 760 mmHg, which is also the same as 760 torr, and these relationships can be used to perform unit conversions in the context of atmospheric pressure.