Gas Laws Part A Flashcards
What is STP?
Standard Temperature and Pressure.
273.15 K or O*C
and 1.00ATM or 760torr
What is SMV?
Standard Molar Volume.
At STP, one mole of an ideal gas has a volume of 22.414 or 22.7
What are the four quantities that describe the state of a gas?
- Pressure,
- Temperature,
- Volume,
- Number of moles
What does Boyle’s Law state?
Volume is inversely related to pressure.
What is constant in Boyles law?
n and T
What does Charle’s Law state?
Volume is directly proportional to the absolute temperature
What is constant in Charle’s Law?
n and P
What does Avogadro’s law state?
The volume of a gas is directly proportional to the number of gas molecules.
What is constant in Avogadro’s Law?
T and P
How to remember Gas laws?
Can These Girls Possibly Be Violinists
What practical application does Boyle’s Law have?
An example of breathing, specifically spontaneous breathing without positive pressure.
What is a practical example of Charles’ Law?
Cuff on ETT or LMA increases at temperature increases
Which law says that as temperature increases, volume will increase?
Charles’ law
Who first conceived that hydrogen is lighter than air?
Charles
How do you calculate Kelvin?
Celsius + 273
At absolute zero, what happens to volume?
It is also zero.
Gay Lussac’s Law relates what two values?
Pressure and temperature are directly proportional.
What is a practical example of Gay-Lussac’s law?
N2O cylinder. As gas is released, the liquid in tank vaporizes and heat is lost. Temp in cylinder falls and the pressure drops.
What is Avogadro’s Number?
6.022 x 10^23rd.
What does Avogadro’s Law state?
The volume of gas is directly proportional to the number of gas molecules as long as the temperature and pressure are constant.
The combination of Gay-Lussac’s, Charles’. and Boyle’s Laws are referred to as what?
The Ideal Gas Laws
Unlike liquids and solids, gas density depends strongly on what two qualities?
Temperature and pressure
Dalton’s Law of Partial pressures states?
That the total pressure of a mixture of gases is equal to the sum of the partial pressures of the component gases.
Explain Mole fraction:
Mole fraction is dividing the number of moles in a particular gas by the combined number of moles in the mixture of gases.
What is the vapor pressure of desflurane?
669
What is the vapor pressure of sevoflurane?
160
What is the vapor pressure of isoflurane?
240
Which law can help predict that there is an absolute zero point?
Charles’ Law
What is the relative humidity?
Mass of water in the air/ mass of water that will fit in the air.
The temperature at which the moisture content in the air will saturate the air is called the what?
Dew point
How is relative humidity related to normal physiology?
By the time the inhaled air reaches the alveoili, the RH should be nearly 100%
