# If a gas pressure gauge reads 15 mm Hg, what is the pressure in atmospheres?

##### 2 Answers

Jun 12, 2017

#### Answer:

0,020 atmospheres

#### Explanation:

760 mm Hg = 1 atmosphere.

# 15/760 = 0.0197368 atmospheres rounding off to 2 significant digits gives

0.020 atmospheres

Jun 12, 2017

#### Answer:

#### Explanation:

To convert between millimeters Mercury (

That is,

Using *dimensional analysis*, we can convert the given pressure: