C11 Gases (3) Charles' gas law

Pressure is calculated as

• Force/area

• Area/force

• Mass/area

• Force/volume

Atmospheric pressure in kPa is about

• 1

• 760

• 100

• 25

What is the difference between STP and STAP?

• STP is at 25 C

• STAP is at 25 C

• STAP is at 101.325 kPa

• STAP uses different units

What units did Torricelli use in his measurements of atmospheric pressure?

• Bar

• mm Hg

• Atm

• kPa

Why does air pressure change from day-to-day?

• Changes in weather

• Changes in sunlight

• Changes in elevation

• Changes in polutants

As elevation increases, air pressure

• Increases

• Decreases

• Stays the same

Above what elevation are humans unable to survive for extended periods?

• 2000 m

• 4000 m

• 8000 m

• 1000 m

The Celsius temperature scale was developed to be

• Scientifically ideal

• Convenient for everyday life

• Based on non-arbitrary data

• An absolute temperature scale

What temperature does water boil in kelvin?

• 373.15 K
• 173.15 K

• 273.15 K

• -273.15 K

Absolute zero was determined by Lord Kelvin by

• Estimating the temperature when a gas has 0 volume

• Estimating the temperature when a gas has 0 thermal energy

• Estimating the temperature when a gas has 0 mass

• Estimating the temperature when a gas has 0 kinetic energy