Ch 6 Gas Laws

Question 1

Oxygen tank exploding under high heat is an example if which gas law

Answer 1

Gay Lussac -
Pressure and Temp directly proportional

Question 2

Diaphragm contracting allowing air into the lungs, is an example of which gas law

Answer 2

Boyles
Decrease in pressure, increasing volume

Question 3

Squeezing a bag valve mask is an example of which gas law

Answer 3

Boyles,
decrease in volume, increases pressure, thus air leaves the bag

Question 4

The volume occupied by a gas is governed by three variables:

Answer 4

temperature, pressure, number of moles

Question 5

Standard conditions, or STP, are?

Answer 5

273 K and 1 bar of pressure

1 bar = 100kPa

Question 6

standard molar volume of an ideal gas is the volume occupied by an ideal gas at STP. The SMV for an ideal gas is?

Answer 6

22.71 L/mol.

Question 7

Describe what a mole fraction of a gas is

Answer 7

Mole fraction of a gas is equal to the moles of an individual gas in a sample divided by the total number of moles of all gases in a sample

Question 8

What is relative humidity measuring

Answer 8

Relative humidity is based on Dalton’s Law and relates the partial pressure of water in a sample of gas to the vapor pressure of water at that temperature.

Question 9

Water vapor pressure of air at sea level is approximately?

Answer 9

47mmHg