Gas laws

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

Define total pressure

Back (Answer)

the total sum of all the collision forces

Front (Question)

Define Charles’s law

Back (Answer)

For a fixed mass of gas at a constant pressure, the volume is directly proportional to the temperature

Front (Question)

Name the four gas laws

Back (Answer)

-Charles’s law -Boyles’s law -Henry’s law -Dalton’s law

Front (Question)

Why is Charles’s law important?

Back (Answer)

Important in lung function testing as air cools as it is expired

Front (Question)

Define Boyle’s law

Back (Answer)

For a fixed mass of gas the product of volume and pressure are always the same providing the temperature is constant.

Front (Question)

What’s the equation for Boyle’s law?

Back (Answer)

P x V = constant

Front (Question)

Using Boyle’s law what happens to volume when pressure increases?

Back (Answer)

volume decreases

Front (Question)

Equation for Boyle’s law

Back (Answer)

P1 V1 = P2 V2

Front (Question)

Using Boyle’s law what happens when you decrease volume?

Back (Answer)

-collisions increase -presure increases

#10

Front (Question)

Draw the graph fo Charles’s law

Back (Answer)

straight line

#11

Front (Question)

Draw the graph for Boyles law

Back (Answer)

inversly proportional curve, look at powerpoint

#12

Front (Question)

Define atmospheric pressure

Back (Answer)

the constant movement and collision of gas particles exerts pressure

#13

Front (Question)

What is pressure exerted by air known as?

Back (Answer)

barometris pressure

#14

Front (Question)

what is barometric pressure measured in?

Back (Answer)

kilopascals (KPa) or mmHg

#15

Front (Question)

what is barometric pressure at sea level?

Back (Answer)

101KPa

#16

Front (Question)

What is 1KPa equal to in mmHg?

Back (Answer)

7.5mmHg

#17

Front (Question)

What is 1mmHg equal to in Kpa?

Back (Answer)

0.133

#18

Front (Question)

Example- if the barometric pressure is 760mmHg what is the Kpa?

Back (Answer)

760 x 0.133 = 101.1 KPa

#19

Front (Question)

List the percentage of gases in the air

Back (Answer)

Nitrogen-78% oxygen-20.8% Argon-0.9% Carbon dioxide-0.04% other gases- 0.17%

#20

Front (Question)

Define Dalton’s law of partial pressure

Back (Answer)

the total pressure of a mixture of gases is equal to the sum of the partial pressure that each gas would exert in isolation. e.g 5KPa + 15Kpa = 20 KPa

#21

Front (Question)

what is the equation for partial pressure?

Back (Answer)

% of gas x atmospheric pressure

#22

Front (Question)

example- partial pressure of oxygen- 20.9%

Back (Answer)

20.9% x 101kpa 0.209 x 101KPa =21.1 KPa

#23

Front (Question)

at sea level the atmospheric pressure is 101KPa which is?

Back (Answer)

this is the sum of partial pressures of constitueant gases

#24

Front (Question)

What are three factors that affect the movement of gases?

Back (Answer)

-pressure gradient -solubility of gas in liquid -temperature